Hourly Weather Forecast - Cornwall, CT

12 AM
44°F
70%
9mph
SSE
70% Chance of Light Rain
Humidity
100%
Feels like
40°F
Dew Point
44°F
1 AM
46°F
80%
9mph
SSE
80% Chance of Rain
Humidity
100%
Feels like
41°F
Dew Point
46°F
2 AM
47°F
90%
10mph
SSE
Rain
Humidity
100%
Feels like
42°F
Dew Point
47°F
3 AM
48°F
100%
12mph
SSE
Rain
Humidity
100%
Feels like
43°F
Dew Point
48°F
4 AM
49°F
100%
13mph
SSE
Rain
Humidity
100%
Feels like
45°F
Dew Point
49°F
5 AM
50°F
100%
14mph
SSE
Rain
Humidity
100%
Feels like
50°F
Dew Point
50°F
6 AM
50°F
100%
14mph
SSE
Rain
Humidity
100%
Feels like
50°F
Dew Point
50°F
7 AM
51°F
100%
14mph
SSE
Rain
Humidity
100%
Feels like
51°F
Dew Point
51°F
7:16 AM
8 AM
51°F
100%
14mph
S
Rain
Humidity
100%
Feels like
51°F
Dew Point
51°F
9 AM
52°F
100%
13mph
S
Light Rain
Humidity
100%
Feels like
52°F
Dew Point
52°F
10 AM
52°F
100%
12mph
S
Light Rain
Humidity
100%
Feels like
52°F
Dew Point
52°F
11 AM
51°F
90%
10mph
SSW
Light Rain
Humidity
100%
Feels like
51°F
Dew Point
51°F
12 PM
50°F
90%
9mph
SW
Light Rain
Humidity
100%
Feels like
46°F
Dew Point
50°F
1 PM
48°F
80%
10mph
WSW
80% Chance of Light Rain
Humidity
99%
Feels like
43°F
Dew Point
47°F
2 PM
46°F
60%
10mph
W
60% Chance of Light Rain
Humidity
94%
Feels like
41°F
Dew Point
44°F
3 PM
43°F
40%
10mph
W
40% Chance of Light Rain
Humidity
88%
Feels like
37°F
Dew Point
40°F
4 PM
41°F
40%
10mph
W
40% Chance of Light Rain
Humidity
84%
Feels like
34°F
Dew Point
36°F
4:24 PM
5 PM
38°F
40%
11mph
W
40% Chance Rain Showers
Humidity
82%
Feels like
31°F
Dew Point
33°F
6 PM
35°F
40%
11mph
W
40% Chance Frozen Mix
Humidity
81%
Feels like
27°F
Dew Point
30°F
7 PM
33°F
30%
12mph
W
30% Chance of Flurries
Humidity
80%
Feels like
24°F
Dew Point
28°F
8 PM
31°F
20%
12mph
W
Mostly Cloudy
Humidity
78%
Feels like
21°F
Dew Point
25°F
9 PM
29°F
10%
12mph
W
Mostly Cloudy
Humidity
75%
Feels like
19°F
Dew Point
22°F
10 PM
28°F
0%
12mph
W
Mostly Cloudy
Humidity
72%
Feels like
18°F
Dew Point
20°F
11 PM
27°F
0%
12mph
W
Mostly Cloudy
Humidity
68%
Feels like
16°F
Dew Point
18°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Tuesday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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