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Observed at: London Int'l Airport
Date: 7:00 PM EDT Sunday 21 June 2026
Mostly Cloudy
Mostly Cloudy 		Temp.: 20 °C
Wind: SSW 16 km/h
Humidity: 68 %
Dew point: 14 °C
Pressure: 101.5 kPa
Tendency: 0.02 kPa
Visibility: 24 km 		Sunrise: 5:46
Sunset: 21:08
Normals:
Max 26°C Min 14°C
 Extended Forecast - Environment Canada
  Mon, 22 Jun
Chance of showers (30%)
Chance of showers
Max: 24°C
 Tue, 23 Jun
Sunny
Sunny
Max: 23°C
 Wed, 24 Jun
Chance of showers (30%)
Chance of showers
Max: 22°C
 Thu, 25 Jun
Chance of showers or thunderstorms (60%)
Chance of showers or thunderstorms
Max: 23°C
 Fri, 26 Jun
A mix of sun and cloud
A mix of sun and cloud
Max: 24°C
 Sat, 27 Jun
A mix of sun and cloud
A mix of sun and cloud
Max: 26°C
Tonight
Periods of rain
Periods of rain
Min: 14°C
 Night
Chance of showers (30%)
Chance of showers
Min: 10°C
 Night
Clear
Clear
Min: 10°C
 Night
Chance of showers (40%)
Chance of showers
Min: 13°C
 Night
Chance of showers (30%)
Chance of showers
Min: 14°C
 Night
Cloudy periods
Cloudy periods
Min: 13°C

Forecast

London, ON (Issued: 6:31 PM EDT Sunday 21 June 2026)

Tonight
Becoming cloudy late this evening. Periods of rain beginning after midnight. Low 14.
Mon, 22 Jun
Periods of rain ending in the morning then mainly cloudy with 30 percent chance of showers. High 24. Humidex 26. UV index 8 or very high.
Night
Partly cloudy with 30 percent chance of showers early in the evening. Clearing in the evening. Fog patches developing overnight. Low 10.
Tue, 23 Jun
Sunny. High 23.
Night
Clear. Low 10.
Wed, 24 Jun
Cloudy with 30 percent chance of showers. High 22.
Night
Cloudy with 40 percent chance of showers. Low 13.
Thu, 25 Jun
A mix of sun and cloud with 60 percent chance of showers or thunderstorms. High 23.
Night
Cloudy with 30 percent chance of showers. Low 14.
Fri, 26 Jun
A mix of sun and cloud. High 24.
Night
Cloudy periods. Low 13.
Sat, 27 Jun
A mix of sun and cloud. High 26.

24 Hour Forecast - London, ON

Date/Time Temp.
(°C)
Weather Conditions
LOP †		 Wind
(km/h)
21 June 2026
8 PM 21 A mix of sun and cloud (20%)  A mix of sun and cloud 20 VR 5
9 PM 20 Partly cloudy (20%)  Partly cloudy 20 VR 5
10 PM 19 Mainly cloudy (20%)  Mainly cloudy 20 VR 5
11 PM 18 Mainly cloudy (20%)  Mainly cloudy 20 VR 5
22 June 2026
12 AM 17 Cloudy (20%)  Cloudy 20 VR 5
1 AM 16 Cloudy (20%)  Cloudy 20 VR 5
2 AM 15 Periods of rain (80%)  Periods of rain 80 VR 5
3 AM 15 Periods of rain (80%)  Periods of rain 80 VR 5
4 AM 15 Periods of rain (80%)  Periods of rain 80 VR 5
5 AM 15 Periods of rain (80%)  Periods of rain 80 VR 5
6 AM 15 Periods of rain (80%)  Periods of rain 80 VR 5
7 AM 14 Periods of rain (80%)  Periods of rain 80 VR 5
8 AM 14 Periods of rain (80%)  Periods of rain 80 E 10
9 AM 15 Periods of rain (80%)  Periods of rain 80 E 10
10 AM 15 Chance of showers (30%)  Chance of showers 30 E 10
11 AM 16 Chance of showers (30%)  Chance of showers 30 E 10
12 PM 17 Chance of showers (30%)  Chance of showers 30 E 10
1 PM 19 Chance of showers (30%)  Chance of showers 30 E 10
2 PM 20 Chance of showers (30%)  Chance of showers 30 E 10
3 PM 21 Chance of showers (30%)  Chance of showers 30 E 10
4 PM 23 Chance of showers (30%)  Chance of showers 30 NW 10
5 PM 24 Chance of showers (30%)  Chance of showers 30 VR 5
6 PM 23 Chance of showers (30%)  Chance of showers 30 VR 5
7 PM 21 Chance of showers (30%)  Chance of showers 30 VR 5
 
† Likelihood of Precipitation (LOP) as described in the public forecast as a chance of measurable precipitation for a period of time.
  Nil: 0%
  Low: 40% or below
  Medium: 60% or 70%
  High: Above 70%

Environment Canada