Please note that the browser or operating system used on your device is no longer supported. Content may be missing or not displayed as expected, it is best to use the latest version of Edge, Firefox, Safari or Chrome.
HEAT WARNING
A prolonged heat event continues through Friday or Saturday. Dangerously hot and humid conditions are expected.Daytime highs are expected to be 30 to 35 degrees Celsius with humidex values of 40 to 45. There will be little relief through the overnight as lows are expected to be 20 to 23 degrees Celsius with humidex values of 26 to 30. Temperatures and humidex values may be several degrees cooler near the shores of the Great Lakes.Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high risk category.Extreme heat can affect everyone's health. The health risks are greater for older adults, infants and young children, pregnant people, people with physical and/or mental illnesses, and people with disabilities or mobility issues. Never leave people, particularly children, or pets inside a parked vehicle.Watch for the effects of heat illness: swelling, rash, cramps, fainting, heat exhaustion, heat stroke and the worsening of some health conditions. Heat stroke is a medical emergency! Call 911 or your local emergency number immediately if you or someone you are caring for has a high body temperature and is confused, has stopped sweating or becomes unconscious. While waiting for help, cool the person right away: move them to a cool place, apply cold water to large areas of the skin and fan the person as much as possible.Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.
In effect for:
- London - Middlesex
Follow:
- Regional ATOM
Current ConditionsObserved at: London Int'l Airport
- Past 24 hours
- Weather Radar
- Satellite
- Lightning
30°C
- °C
- °F
- Observed at:
- London Int'l Airport
- Date:
- Condition:
- Mostly Cloudy
- Pressure:
- 102.0 kPa
- Tendency:
- Falling
- Temperature:
- 30.2°C
- Dew point:
- 21.3°C
- Humidity:
- 59%
- Wind:
- S 25 gusts 35 km/h
- Humidex:
- 39
- Visibility:
- 24 km
30°C
- Condition:
- Mostly Cloudy
- Pressure:
- 102.0 kPa
- Tendency:
- Falling
- Temperature:
- 30.2°C
- Dew point:
- 21.3°C
- Humidity:
- 59%
- Wind:
- S 25 gusts 35 km/h
- Humidex:
- 39
- Visibility:
- 24 km
Mostly Cloudy
30°C
- °C
- °F
- Wind:
- S 25
gusts 35 km/h
- Humidex:
- 39
More details
- Temperature:
- 30.2°C
- Pressure:
- 102.0 kPa
- Dew point:
- 21.3°C
- Visibility:
- 24 km
- Humidity:
- 59%
- Date:
- Observed at:
- London Int'l Airport
Past 24 hour Conditions
Weather Radar
Satellite
Lightning
Alerts
Jet Stream
Hourly Forecast
Air Quality
Historical Weather
ForecastForecast issued:
- Hourly Forecast
- Air Quality
- Alerts
- Jet Stream
Tonight
Wed
19 Jun
34°C
30%
Chance of showers
Night
21°C
60%
Chance of showers
Thu
20 Jun
31°C
30%
Chance of showers
Night
21°C
Clear
Fri
21 Jun
31°C
30%
Chance of showers
Night
20°C
30%
Chance of showers
Sat
22 Jun
30°C
30%
Chance of showers
Night
21°C
30%
Chance of showers
Sun
23 Jun
29°C
30%
Chance of showers
Night
16°C
Cloudy
Mon
24 Jun
24°C
A mix of sun and cloud
HEAT WARNING
A prolonged heat event continues through Friday or Saturday. Dangerously hot and humid conditions are expected.Daytime highs are expected to be 30 to 35 degrees Celsius with humidex values of 40 to 45. There will be little relief through the overnight as lows are expected to be 20 to 23 degrees Celsius with humidex values of 26 to 30. Temperatures and humidex values may be several degrees cooler near the shores of the Great Lakes.Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high risk category.Extreme heat can affect everyone's health. The health risks are greater for older adults, infants and young children, pregnant people, people with physical and/or mental illnesses, and people with disabilities or mobility issues. Never leave people, particularly children, or pets inside a parked vehicle.Watch for the effects of heat illness: swelling, rash, cramps, fainting, heat exhaustion, heat stroke and the worsening of some health conditions. Heat stroke is a medical emergency! Call 911 or your local emergency number immediately if you or someone you are caring for has a high body temperature and is confused, has stopped sweating or becomes unconscious. While waiting for help, cool the person right away: move them to a cool place, apply cold water to large areas of the skin and fan the person as much as possible.Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.
In effect for:
- London - Middlesex
Follow:
- Regional ATOM
Detailed ForecastForecast issued:
HEAT WARNING
A prolonged heat event continues through Friday or Saturday. Dangerously hot and humid conditions are expected.Daytime highs are expected to be 30 to 35 degrees Celsius with humidex values of 40 to 45. There will be little relief through the overnight as lows are expected to be 20 to 23 degrees Celsius with humidex values of 26 to 30. Temperatures and humidex values may be several degrees cooler near the shores of the Great Lakes.Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high risk category.Extreme heat can affect everyone's health. The health risks are greater for older adults, infants and young children, pregnant people, people with physical and/or mental illnesses, and people with disabilities or mobility issues. Never leave people, particularly children, or pets inside a parked vehicle.Watch for the effects of heat illness: swelling, rash, cramps, fainting, heat exhaustion, heat stroke and the worsening of some health conditions. Heat stroke is a medical emergency! Call 911 or your local emergency number immediately if you or someone you are caring for has a high body temperature and is confused, has stopped sweating or becomes unconscious. While waiting for help, cool the person right away: move them to a cool place, apply cold water to large areas of the skin and fan the person as much as possible.Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.
In effect for:
- London - Middlesex
Follow:
- Regional ATOM
Date | Detailed Forecast |
---|---|
Tonight | Partly cloudy with 30 percent chance of showers. Risk of a thunderstorm this evening. Wind south 30 km/h gusting to 50 becoming light this evening. Low 23. |
Wed, 19 Jun | A mix of sun and cloud. 30 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind becoming south 20 km/h late in the morning. High 34. Humidex 42. UV index 10 or very high. |
Night | Partly cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 21. |
Thu, 20 Jun | A mix of sun and cloud with 30 percent chance of showers. High 31. |
Night | Clear. Low 21. |
Fri, 21 Jun | A mix of sun and cloud with 30 percent chance of showers. High 31. |
Night | Cloudy periods with 30 percent chance of showers. Low 20. |
Sat, 22 Jun | A mix of sun and cloud with 30 percent chance of showers. High 30. |
Night | Cloudy with 30 percent chance of showers. Low 21. |
Sun, 23 Jun | Cloudy with 30 percent chance of showers. High 29. |
Night | Cloudy. Low 16. |
Mon, 24 Jun | A mix of sun and cloud. High 24. |
Normals | Max25°C.Min14°C. | Sunrise | 5:46 EDT | Sunset | 21:07 EDT |
---|
Detailed ForecastForecast issued:
Tonight23°C
Partly cloudy with 30 percent chance of showers. Risk of a thunderstorm this evening. Wind south 30 km/h gusting to 50 becoming light this evening. Low 23.
Wed, 19 Jun
34°C
A mix of sun and cloud. 30 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind becoming south 20 km/h late in the morning. High 34. Humidex 42. UV index 10 or very high.
Night:Partly cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 21.
Thu, 20 Jun
31°C
A mix of sun and cloud with 30 percent chance of showers. High 31.
Night:Clear. Low 21.
Fri, 21 Jun
31°C
A mix of sun and cloud with 30 percent chance of showers. High 31.
Night:Cloudy periods with 30 percent chance of showers. Low 20.
Sat, 22 Jun
30°C
A mix of sun and cloud with 30 percent chance of showers. High 30.
Night:Cloudy with 30 percent chance of showers. Low 21.
Sun, 23 Jun
29°C
Cloudy with 30 percent chance of showers. High 29.
Night:Cloudy. Low 16.
Mon, 24 Jun
24°C
A mix of sun and cloud. High 24.
- Normals:
- Max25°C.Min14°C.
- Sunrise:
- 5:46 EDT
- Sunset:
- 21:07 EDT
Averages and extremes
13 Jun
- Average high
- 23.6°C
- Average low
- 11.9°C
- Highest temperature (1941-2002)
- 33.3°C
- 1956
- Lowest temperature (1941-2002)
- 3.9°C
- 1965
- Greatest precipitation (1941-2002)
- 23.6 mm
- 2000
- Greatest rainfall (1941-2002)
- 23.6 mm
- 2000
- Greatest snowfall (1941-2002)
- 0.0 cm
- Most snow on the ground (1955-2002)
- 0.0 cm
- Monthly frequency of precipitation
- 39%
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
14 Jun
- Average high
- 23.7°C
- Average low
- 12.0°C
- Highest temperature (1941-2002)
- 33.7°C
- 1988
- Lowest temperature (1941-2002)
- 2.8°C
- 1968
- Greatest precipitation (1941-2002)
- 26.0 mm
- 1999
- Greatest rainfall (1941-2002)
- 26.0 mm
- 1999
- Greatest snowfall (1941-2002)
- 0.0 cm
- Most snow on the ground (1955-2002)
- 0.0 cm
- Monthly frequency of precipitation
- 39%
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
15 Jun
- Average high
- 23.8°C
- Average low
- 12.2°C
- Highest temperature (1941-2002)
- 32.2°C
- 1943
- Lowest temperature (1941-2002)
- 4.3°C
- 1978
- Greatest precipitation (1941-2002)
- 21.6 mm
- 1991
- Greatest rainfall (1941-2002)
- 21.6 mm
- 1991
- Greatest snowfall (1941-2002)
- 0.0 cm
- Most snow on the ground (1955-2002)
- 0.0 cm
- Monthly frequency of precipitation
- 39%
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
16 Jun
- Average high
- 24.0°C
- Average low
- 12.3°C
- Highest temperature (1941-2002)
- 32.8°C
- 1994
- Lowest temperature (1941-2002)
- 3.5°C
- 1980
- Greatest precipitation (1941-2002)
- 42.4 mm
- 1960
- Greatest rainfall (1941-2002)
- 42.4 mm
- 1960
- Greatest snowfall (1941-2002)
- 0.0 cm
- Most snow on the ground (1955-2002)
- 0.0 cm
- Monthly frequency of precipitation
- 39%
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
17 Jun
- Average high
- 24.1°C
- Average low
- 12.4°C
- Highest temperature (1941-2002)
- 33.8°C
- 1994
- Lowest temperature (1941-2002)
- 1.1°C
- 1980
- Greatest precipitation (1941-2002)
- 81.8 mm
- 1946
- Greatest rainfall (1941-2002)
- 81.8 mm
- 1946
- Greatest snowfall (1941-2002)
- 0.0 cm
- Most snow on the ground (1955-2002)
- 0.0 cm
- Monthly frequency of precipitation
- 39%
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
18 Jun
- Average high
- 24.2°C
- Average low
- 12.5°C
- Highest temperature (1941-2002)
- 34.2°C
- 1994
- Lowest temperature (1941-2002)
- 2.2°C
- 1950
- Greatest precipitation (1941-2002)
- 28.2 mm
- 1996
- Greatest rainfall (1941-2002)
- 28.2 mm
- 1996
- Greatest snowfall (1941-2002)
- 0.0 cm
- Most snow on the ground (1955-2002)
- 0.0 cm
- Monthly frequency of precipitation
- 39%
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
19 Jun
- Average high
- 24.3°C
- Average low
- 12.7°C
- Highest temperature (1941-2002)
- 33.9°C
- 1995
- Lowest temperature (1941-2002)
- 6.7°C
- 1950
- Greatest precipitation (1941-2002)
- 16.5 mm
- 1980
- Greatest rainfall (1941-2002)
- 16.5 mm
- 1980
- Greatest snowfall (1941-2002)
- 0.0 cm
- Most snow on the ground (1955-2002)
- 0.0 cm
- Monthly frequency of precipitation
- 39%
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
20 Jun
- Average high
- 24.4°C
- Average low
- 12.8°C
- Highest temperature (1941-2002)
- 33.9°C
- 1953
- Lowest temperature (1941-2002)
- 3.9°C
- 1970
- Greatest precipitation (1941-2002)
- 19.6 mm
- 1956
- Greatest rainfall (1941-2002)
- 19.6 mm
- 1956
- Greatest snowfall (1941-2002)
- 0.0 cm
- Most snow on the ground (1955-2002)
- 0.0 cm
- Monthly frequency of precipitation
- 39%
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
21 Jun
- Average high
- 24.5°C
- Average low
- 12.9°C
- Highest temperature (1941-2002)
- 32.2°C
- 1941
- Lowest temperature (1941-2002)
- 3.3°C
- 1969
- Greatest precipitation (1941-2002)
- 36.1 mm
- 1972
- Greatest rainfall (1941-2002)
- 36.1 mm
- 1972
- Greatest snowfall (1941-2002)
- 0.0 cm
- Most snow on the ground (1955-2002)
- 0.0 cm
- Monthly frequency of precipitation
- 39%
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
22 Jun
- Average high
- 24.6°C
- Average low
- 13.0°C
- Highest temperature (1941-2002)
- 32.8°C
- 1941
- Lowest temperature (1941-2002)
- 1.3°C
- 1992
- Greatest precipitation (1941-2002)
- 26.0 mm
- 1987
- Greatest rainfall (1941-2002)
- 26.0 mm
- 1987
- Greatest snowfall (1941-2002)
- 0.0 cm
- Most snow on the ground (1955-2002)
- 0.0 cm
- Monthly frequency of precipitation
- 39%
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
23 Jun
- Average high
- 24.7°C
- Average low
- 13.1°C
- Highest temperature (1941-2002)
- 32.5°C
- 1983
- Lowest temperature (1941-2002)
- 5.1°C
- 1992
- Greatest precipitation (1941-2002)
- 28.8 mm
- 1990
- Greatest rainfall (1941-2002)
- 28.8 mm
- 1990
- Greatest snowfall (1941-2002)
- 0.0 cm
- Most snow on the ground (1955-2002)
- 0.0 cm
- Monthly frequency of precipitation
- 39%
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
Weather shortcuts
Organize Shortcuts
Select to drag and drop, rename or delete.
No shortcuts
- Report Severe Weather
- Canadian Weather
- Weather Radar - Canada
- Satellite - Canada
- Marine - Canada
- Air Quality
- Canadian Ice Service
- Seasonal forecasts
- Extended forecast
- Public Alerts - Canada
- Lightning
- Hurricane
- Weather Summaries
- Hazardous Weather
- Global and Regional forecast models
- Astronomy
- Water Level and Flow
- Historical Climate Data
- Aviation
- Guide to Public forecasts
- Guide to Marine forecasts
- Guide to Air Quality forecasts
- Canadian Centre for Climate Services Library
- Wind Chill and Humidex Calculators
- Weather and your health
Add this page
×
Add to shortcuts
The name you have entered for the shortcut already exists on your Weather shortcuts menu. Would you like to overwrite it?
×
Rename shortcut
There is already a shortcut with the same name in this list. Do you want to rename "link" to "link(2)"?
×
Add to shortcuts
Your shortcut list has reached the maximum size of 30
How to use
Add to shortcuts
- Go to the desired page on the site, open the Weather shortcuts menu and click on the "Add to shortcuts" button
- Page name will display in the "Add this page" window, the name can be changed by highlighting the text and entering the desired name
- Click on the "Save" button to add the link to the list
- Click on the "X" button to close the panel
Delete a link
- Click on the "Organize shortcuts" button
- Select the link to delete
- Click on the "Delete" button to remove the link from the list
- Click on the "Close" button to save the change
Move a link up/down the list
- Click on the "Organize shortcuts" button
- Click and hold the link and move to new location in the list
- Click on the "Close" button to save the change
Rename a link
- Click on the "Organize shortcuts" button
- Select the link to rename
- Click on the "Rename" button and change the link name
- Click the enter or tab key
- Click on the "Close" button to save the change
Keyboard navigation
- Use the Tab key to move to a button or link
- Use the Enter key to click on buttons or links
- Organize shortcuts navigation
- Use the ↑ Up key to select the link above. If none are selected, it will select the first link.
- Use the ↓ Down key to select the link below. If none are selected, it will select the last link.
- Use the Page Up key to move a selection up in the list.
- Use the Page Down key to move a selection down in the list.
Restore default list
Warning: Clicking on the button below will remove all your customized links.
Customized Weather shortcuts
Save your customized list as a bookmark.
Copy/paste or click on the link below then when the page displays, you can bookmark the page using the web browser. Bookmarking your customized list will allow you to access it even if the local storage on your device is erased.
Features
Find out about coastal flooding coverage, forecasts and warnings in your region
Feedbackabout this web site
- Date modified: