Hourly Weather Forecast - Cornwall, CT

12 AM
33°F
30%
2mph
S
30% Chance of Light Rain
Humidity
89%
Feels like
33°F
Dew Point
30°F
1 AM
33°F
40%
2mph
S
40% Chance of Light Rain
Humidity
88%
Feels like
33°F
Dew Point
29°F
2 AM
32°F
40%
2mph
S
40% Chance of Light Rain
Humidity
88%
Feels like
32°F
Dew Point
29°F
3 AM
32°F
40%
2mph
S
40% Chance of Light Rain
Humidity
88%
Feels like
32°F
Dew Point
29°F
4 AM
32°F
30%
2mph
S
30% Chance of Light Rain
Humidity
88%
Feels like
32°F
Dew Point
29°F
5 AM
32°F
30%
2mph
S
30% Chance of Light Rain
Humidity
89%
Feels like
32°F
Dew Point
29°F
6 AM
32°F
30%
3mph
SSW
30% Chance of Light Rain
Humidity
90%
Feels like
32°F
Dew Point
30°F
7 AM
33°F
30%
3mph
SSW
30% Chance of Light Rain
Humidity
91%
Feels like
30°F
Dew Point
31°F
7:19 AM
8 AM
34°F
30%
3mph
SW
30% Chance of Light Rain
Humidity
91%
Feels like
31°F
Dew Point
32°F
9 AM
35°F
40%
3mph
SW
40% Chance of Light Rain
Humidity
91%
Feels like
33°F
Dew Point
33°F
10 AM
37°F
40%
3mph
WSW
40% Chance of Light Rain
Humidity
90%
Feels like
34°F
Dew Point
34°F
11 AM
38°F
40%
3mph
WSW
40% Chance of Light Rain
Humidity
89%
Feels like
36°F
Dew Point
35°F
12 PM
40°F
40%
4mph
W
40% Chance of Light Rain
Humidity
88%
Feels like
37°F
Dew Point
36°F
1 PM
40°F
30%
4mph
W
30% Chance of Light Rain
Humidity
87%
Feels like
38°F
Dew Point
37°F
2 PM
41°F
30%
4mph
W
30% Chance of Light Rain
Humidity
85%
Feels like
38°F
Dew Point
37°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

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Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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