Weather Forecast for London (CA)
Ontario, Canada
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Current Weather - London (CA): 22°C
Current Weather - London (CA): 22°C
Ontario, Canada
Overcast
Feels like 22°C
Wind
12 km/h WNW
Humidity
72%
Pressure
1016 mb
UV Index
4
Visibility
10 km
Sunny
Friday, September 04, 2026
High
26°C
Low
17°C
Rain Chance
67%
Hourly Forecast
23°C
23°C
22°C
21°C
21°C
21°C
21°C
Day Statistics
Maximum Wind
16 km/h
Humidity
86%
Precipitation
2 mm
UV Index
6
Visibility
7 km
Rain Chance
67%
Snow Chance
0%
Sun & Moon
Sunrise
06:52 AM
Sunset
07:55 PM
Moonrise
11:39 PM
Moonset
03:11 PM
Moon Phase
Last Quarter
Moon Illumination
39%
Air Quality
PM2.5
5.3
μg/m³
PM10
5.6
μg/m³
NO₂
10.2
μg/m³
O₃
62.7
μg/m³
SO₂
1.4
μg/m³
CO
222.8
μg/m³
Sunny
Saturday, September 05, 2026
High
23°C
Low
16°C
Rain Chance
8%
Hourly Forecast
21°C
21°C
20°C
19°C
17°C
16°C
16°C
16°C
16°C
17°C
19°C
20°C
22°C
22°C
23°C
23°C
23°C
23°C
22°C
22°C
19°C
18°C
18°C
17°C
Day Statistics
Maximum Wind
17 km/h
Humidity
73%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
8%
Snow Chance
0%
Sun & Moon
Sunrise
06:53 AM
Sunset
07:53 PM
Moonrise
Does not rise today
Moonset
04:16 PM
Moon Phase
Waning Crescent
Moon Illumination
29%
Air Quality
PM2.5
4.6
μg/m³
PM10
4.8
μg/m³
NO₂
8.5
μg/m³
O₃
61.5
μg/m³
SO₂
2.2
μg/m³
CO
165.2
μg/m³
Sunny
Sunday, September 06, 2026
High
22°C
Low
14°C
Rain Chance
17%
Hourly Forecast
16°C
16°C
15°C
16°C
17°C
17°C
17°C
16°C
15°C
16°C
18°C
19°C
21°C
21°C
22°C
22°C
22°C
22°C
20°C
19°C
17°C
16°C
15°C
14°C
Day Statistics
Maximum Wind
20 km/h
Humidity
70%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
17%
Snow Chance
0%
Sun & Moon
Sunrise
06:55 AM
Sunset
07:51 PM
Moonrise
12:41 AM
Moonset
05:10 PM
Moon Phase
Waning Crescent
Moon Illumination
20%
Air Quality
PM2.5
2.6
μg/m³
PM10
2.6
μg/m³
NO₂
6.1
μg/m³
O₃
57
μg/m³
SO₂
2.1
μg/m³
CO
162.5
μg/m³
Sunny
Monday, September 07, 2026
High
23°C
Low
13°C
Rain Chance
6%
Hourly Forecast
15°C
14°C
14°C
14°C
13°C
13°C
13°C
13°C
15°C
15°C
18°C
19°C
21°C
21°C
22°C
22°C
22°C
23°C
22°C
21°C
18°C
16°C
16°C
16°C
Day Statistics
Maximum Wind
14 km/h
Humidity
65%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
6%
Snow Chance
0%
Sun & Moon
Sunrise
06:56 AM
Sunset
07:49 PM
Moonrise
01:56 AM
Moonset
05:54 PM
Moon Phase
Waning Crescent
Moon Illumination
12%
Air Quality
PM2.5
2.8
μg/m³
PM10
2.8
μg/m³
NO₂
7.1
μg/m³
O₃
62.9
μg/m³
SO₂
1.6
μg/m³
CO
215.5
μg/m³
Overcast
Tuesday, September 08, 2026
High
24°C
Low
14°C
Rain Chance
16%
Hourly Forecast
15°C
15°C
16°C
16°C
15°C
15°C
14°C
14°C
16°C
15°C
16°C
20°C
22°C
23°C
23°C
24°C
24°C
23°C
21°C
22°C
21°C
21°C
21°C
20°C
Day Statistics
Maximum Wind
17 km/h
Humidity
70%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
16%
Snow Chance
0%
Sun & Moon
Sunrise
06:57 AM
Sunset
07:48 PM
Moonrise
03:17 AM
Moonset
06:28 PM
Moon Phase
Waning Crescent
Moon Illumination
6%
Air Quality
PM2.5
6.8
μg/m³
PM10
6.9
μg/m³
NO₂
16
μg/m³
O₃
44.1
μg/m³
SO₂
2.7
μg/m³
CO
276.2
μg/m³
Sunny
Wednesday, September 09, 2026
High
30°C
Low
19°C
Rain Chance
10%
Hourly Forecast
20°C
21°C
22°C
22°C
22°C
22°C
22°C
22°C
22°C
23°C
24°C
26°C
27°C
27°C
28°C
29°C
29°C
30°C
28°C
25°C
23°C
22°C
20°C
19°C
Day Statistics
Maximum Wind
37 km/h
Humidity
69%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
10%
Snow Chance
0%
Sun & Moon
Sunrise
06:58 AM
Sunset
07:46 PM
Moonrise
04:40 AM
Moonset
06:57 PM
Moon Phase
New Moon
Moon Illumination
2%
Patchy rain nearby
Thursday, September 10, 2026
High
19°C
Low
11°C
Rain Chance
17%
Hourly Forecast
19°C
18°C
17°C
17°C
16°C
16°C
15°C
14°C
14°C
14°C
14°C
14°C
14°C
14°C
14°C
15°C
15°C
16°C
15°C
14°C
13°C
12°C
12°C
11°C
Day Statistics
Maximum Wind
31 km/h
Humidity
68%
Precipitation
0 mm
UV Index
4
Visibility
10 km
Rain Chance
17%
Snow Chance
0%
Sun & Moon
Sunrise
06:59 AM
Sunset
07:44 PM
Moonrise
06:01 AM
Moonset
07:21 PM
Moon Phase
New Moon
Moon Illumination
0%
Solar Radiation Data
Shortwave Radiation
303.97
Diffuse Radiation
116.14
DNI
0
GTI
0
Weather Alerts
squall watch in effect
Conditions are favourable for the development of squalls with wind gusts up to 35 knots and frequent lightning. Thunderstorms tracking southeast at 25 knots over Lower Michigan may be capable of producing wind gusts to 35 knots. ### Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
Vessels without lightning protection should make their way to shore immediately. Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway.
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