London, ON - 7 Day Forecast (2024)

Table of Contents
Current ConditionsObserved at: London Int'l Airport 4:00 PM EDT Tuesday 18 June 2024 ForecastForecast issued: 3:30 PM EDT Tuesday 18 June 2024 Detailed ForecastForecast issued: 3:30 PM EDT Tuesday 18 June 2024 Detailed ForecastForecast issued: 3:30 PM EDT Tuesday 18 June 2024 Averages and extremes Yesterday's Data Follow: Weather shortcuts Organize Shortcuts Customized Weather shortcuts Features References

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HEAT WARNING

A prolonged heat event continues today. Dangerously hot and humid conditions are expected through most of the week.Daytime highs through much of the week 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

London, ON - 7 Day Forecast (2)

32°C

  • °C
  • °F
Observed at:
London Int'l Airport
Date:
Condition:
Mostly Cloudy
Pressure:
102.0 kPa
Tendency:
Falling
Temperature:
31.6°C
Dew point:
21.6°C
Humidity:
56%
Wind:
S 19 km/h
Humidex:
41
Visibility:
24 km

London, ON - 7 Day Forecast (3)

32°C

Condition:
Mostly Cloudy
Pressure:
102.0 kPa
Tendency:
Falling
Temperature:
31.6°C
Dew point:
21.6°C
Humidity:
56%
Wind:
S 19 km/h
Humidex:
41
Visibility:
24 km

London, ON - 7 Day Forecast (4)

Mostly Cloudy

32°C

  • °C
  • °F
Wind:
S 19 km/h
More details
Temperature:
31.6°C
Pressure:
102.0 kPa
Dew point:
21.6°C
Visibility:
24 km
Humidity:
56%
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

23°C 30% Chance of showers

Wed
19 Jun

London, ON - 7 Day Forecast (6)

34°C

30%

Chance of showers

Night

London, ON - 7 Day Forecast (7)

21°C

60%

Chance of showers

Thu
20 Jun

London, ON - 7 Day Forecast (8)

31°C

30%

Chance of showers

Night

London, ON - 7 Day Forecast (9)

21°C

Clear

Sat
22 Jun

London, ON - 7 Day Forecast (12)

30°C

30%

Chance of showers

Night

London, ON - 7 Day Forecast (13)

21°C

30%

Chance of showers

Sun
23 Jun

London, ON - 7 Day Forecast (14)

29°C

30%

Chance of showers

Night

London, ON - 7 Day Forecast (15)

16°C

Cloudy

Mon
24 Jun

London, ON - 7 Day Forecast (16)

24°C

A mix of sun and cloud

HEAT WARNING

A prolonged heat event continues today. Dangerously hot and humid conditions are expected through most of the week.Daytime highs through much of the week 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 today. Dangerously hot and humid conditions are expected through most of the week.Daytime highs through much of the week 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
DateDetailed Forecast
TonightPartly 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 JunA 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.
NightPartly cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 21.
Thu, 20 JunA mix of sun and cloud with 30 percent chance of showers. High 31.
NightClear. Low 21.
Fri, 21 JunA mix of sun and cloud with 30 percent chance of showers. High 31.
NightCloudy periods with 30 percent chance of showers. Low 20.
Sat, 22 JunA mix of sun and cloud with 30 percent chance of showers. High 30.
NightCloudy with 30 percent chance of showers. Low 21.
Sun, 23 JunCloudy with 30 percent chance of showers. High 29.
NightCloudy. Low 16.
Mon, 24 JunA mix of sun and cloud. High 24.
NormalsMax25°C.Min14°C.Sunrise5:46 EDTSunset21:07 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.

London, ON - 7 Day Forecast (20)

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.

London, ON - 7 Day Forecast (21)

Thu, 20 Jun
31°C

A mix of sun and cloud with 30 percent chance of showers. High 31.
Night:Clear. Low 21.

London, ON - 7 Day Forecast (22)

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.

London, ON - 7 Day Forecast (23)

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.

London, ON - 7 Day Forecast (24)

Sun, 23 Jun
29°C

Cloudy with 30 percent chance of showers. High 29.
Night:Cloudy. Low 16.

London, ON - 7 Day Forecast (25)

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

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.

Yesterday's Data

  • Historical Weather

Max:
30.8°C

Min:
16.4°C

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London, ON - 7 Day Forecast (2024)

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