Hourly Weather Forecast - Cornwall, Ontario, CA

12 AM
26°F
0%
3mph
N
Mostly Cloudy
Humidity
91%
Feels like
26°F
Dew Point
23°F
1 AM
26°F
0%
2mph
N
Mostly Cloudy
Humidity
91%
Feels like
26°F
Dew Point
23°F
2 AM
26°F
0%
2mph
NNW
Mostly Cloudy
Humidity
91%
Feels like
26°F
Dew Point
23°F
3 AM
25°F
30%
2mph
NW
30% Chance of Snow
Humidity
93%
Feels like
25°F
Dew Point
23°F
4 AM
24°F
30%
2mph
W
30% Chance of Snow
Humidity
96%
Feels like
24°F
Dew Point
23°F
5 AM
24°F
0%
2mph
W
Mostly Cloudy
Humidity
98%
Feels like
24°F
Dew Point
23°F
6 AM
23°F
0%
3mph
W
Mostly Cloudy
Humidity
98%
Feels like
23°F
Dew Point
23°F
7 AM
25°F
0%
3mph
W
Mostly Cloudy
Humidity
90%
Feels like
20°F
Dew Point
22°F
7:00 AM
8 AM
27°F
0%
4mph
WNW
Partly Cloudy
Humidity
80%
Feels like
23°F
Dew Point
22°F
9 AM
30°F
0%
4mph
WNW
Partly Cloudy
Humidity
71%
Feels like
26°F
Dew Point
22°F
10 AM
33°F
0%
4mph
NW
Partly Cloudy
Humidity
65%
Feels like
29°F
Dew Point
22°F
11 AM
34°F
0%
4mph
NW
Partly Cloudy
Humidity
60%
Feels like
30°F
Dew Point
22°F
12 PM
35°F
0%
4mph
NW
Partly Cloudy
Humidity
56%
Feels like
32°F
Dew Point
22°F
1 PM
36°F
0%
5mph
WNW
Partly Cloudy
Humidity
53%
Feels like
32°F
Dew Point
21°F
2 PM
37°F
0%
5mph
WNW
Partly Cloudy
Humidity
51%
Feels like
32°F
Dew Point
20°F
3 PM
37°F
0%
5mph
WNW
Partly Cloudy
Humidity
50%
Feels like
33°F
Dew Point
20°F
4 PM
37°F
0%
4mph
WNW
Mostly Cloudy
Humidity
51%
Feels like
33°F
Dew Point
20°F
5 PM
36°F
0%
4mph
WNW
Cloudy
Humidity
53%
Feels like
33°F
Dew Point
20°F
6 PM
35°F
0%
2mph
WNW
Cloudy
Humidity
57%
Feels like
35°F
Dew Point
21°F
7 PM
33°F
10%
2mph
WSW
Cloudy
Humidity
64%
Feels like
33°F
Dew Point
22°F
7:12 PM
8 PM
31°F
10%
2mph
SW
Cloudy
Humidity
70%
Feels like
31°F
Dew Point
23°F
9 PM
31°F
20%
2mph
SSW
Cloudy
Humidity
74%
Feels like
31°F
Dew Point
23°F
10 PM
30°F
30%
2mph
S
30% Chance of Snow
Humidity
76%
Feels like
30°F
Dew Point
24°F
11 PM
30°F
30%
1mph
SSE
30% Chance of Flurries
Humidity
79%
Feels like
30°F
Dew Point
24°F

Saturday's High Temperature Outlook

Scorching Heat Continues Across the Southwest

Dozens of record high temperatures will be challenged or shattered across the Southwest today.

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

(Image provided by Pixabay.com)

Lightning Safety

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

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