Hourly Weather Forecast - Cornwall, Ontario, CA

7 AM
10°F
0%
20mph
W
Partly Cloudy
Humidity
57%
Feels like
-8°F
Dew Point
-2°F
7:37 AM
8 AM
10°F
0%
19mph
W
Mostly Cloudy
Humidity
56%
Feels like
-8°F
Dew Point
-2°F
9 AM
11°F
0%
19mph
W
Mostly Cloudy
Humidity
54%
Feels like
-8°F
Dew Point
-3°F
10 AM
11°F
0%
19mph
W
Mostly Cloudy
Humidity
53%
Feels like
-7°F
Dew Point
-3°F
11 AM
11°F
0%
18mph
W
Mostly Cloudy
Humidity
52%
Feels like
-7°F
Dew Point
-3°F
12 PM
11°F
10%
18mph
W
Mostly Cloudy
Humidity
53%
Feels like
-7°F
Dew Point
-3°F
1 PM
11°F
30%
18mph
W
30% Chance of Flurries
Humidity
54%
Feels like
-7°F
Dew Point
-3°F
2 PM
11°F
30%
17mph
W
30% Chance of Flurries
Humidity
55%
Feels like
-7°F
Dew Point
-2°F
3 PM
10°F
30%
17mph
W
30% Chance of Flurries
Humidity
57%
Feels like
-7°F
Dew Point
-2°F
4 PM
10°F
30%
16mph
W
30% Chance of Flurries
Humidity
59%
Feels like
-7°F
Dew Point
-1°F
4:25 PM
5 PM
10°F
30%
15mph
W
30% Chance of Snow
Humidity
60%
Feels like
-7°F
Dew Point
-1°F
6 PM
10°F
30%
15mph
W
30% Chance of Snow
Humidity
62%
Feels like
-7°F
Dew Point
-1°F
7 PM
10°F
20%
15mph
W
Mostly Cloudy
Humidity
63%
Feels like
-7°F
Dew Point
0°F
8 PM
9°F
30%
14mph
W
30% Chance of Flurries
Humidity
64%
Feels like
-7°F
Dew Point
0°F
9 PM
8°F
30%
15mph
W
30% Chance of Flurries
Humidity
66%
Feels like
-8°F
Dew Point
-1°F
10 PM
8°F
30%
14mph
W
30% Chance of Snow
Humidity
67%
Feels like
-9°F
Dew Point
-1°F
11 PM
7°F
10%
14mph
WSW
Mostly Cloudy
Humidity
67%
Feels like
-9°F
Dew Point
-1°F

Tuesday's Weather Outlook

Today's Weather Outlook

Old Man Winter delivers plenty of cold and snow to the eastern third of the U.S. today.

St. Louis Tornado - May 16th, 2025

2025 Year in Review: Billion-Dollar Disasters From May through June

EF3 tornado damage near Plantersville, Alabama

2025 Year in Review: Billion-Dollar Disasters From February Through April

Photos and videos from the Palisades Fire that started in the City of Los Angeles, January 8, 2025. (CAL FIRE_Official via Wikimedia Commons)

2025 Year in Review: Billion Dollar Disasters - The California Wildfires

Large wall of dust approaching Phoenix Sky Harbor Airport at around 5:30 PM MST (Photo credit: Mike Olbinski via NWS)

2025 Year in Review: Extreme Weather - July Through December

A frame from an automated video of a tornado and its mesocyclone that derailed multiple train cars near Enderlin, North Dakota and destroyed multiple homes on June 20, 2025. (ChrisWx via Wikimedia Commons)

2025 Year in Review: Extreme Weather - January through June

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide