Hourly Weather Forecast - Cornwall, CT

12 AM
29°F
0%
2mph
NW
Clear
Humidity
90%
Feels like
29°F
Dew Point
26°F
1 AM
28°F
0%
2mph
NW
Hazy
Humidity
91%
Feels like
28°F
Dew Point
26°F
2 AM
27°F
0%
2mph
NW
Hazy
Humidity
92%
Feels like
27°F
Dew Point
25°F
3 AM
26°F
0%
1mph
W
Hazy
Humidity
93%
Feels like
26°F
Dew Point
24°F
4 AM
25°F
0%
0mph
W
Hazy
Humidity
94%
Feels like
25°F
Dew Point
24°F
5 AM
24°F
0%
1mph
NE
Hazy
Humidity
95%
Feels like
24°F
Dew Point
23°F
6 AM
23°F
0%
1mph
E
Hazy
Humidity
97%
Feels like
23°F
Dew Point
22°F
7 AM
24°F
0%
2mph
SE
Partly Cloudy
Humidity
96%
Feels like
24°F
Dew Point
23°F
7:15 AM
8 AM
26°F
0%
2mph
SSE
Hazy
Humidity
93%
Feels like
26°F
Dew Point
24°F
9 AM
30°F
0%
3mph
SSE
Mostly Sunny
Humidity
88%
Feels like
27°F
Dew Point
27°F
10 AM
34°F
0%
4mph
S
Mostly Sunny
Humidity
83%
Feels like
30°F
Dew Point
29°F
11 AM
37°F
0%
5mph
S
Mostly Sunny
Humidity
80%
Feels like
32°F
Dew Point
31°F
12 PM
39°F
0%
6mph
S
Partly Cloudy
Humidity
78%
Feels like
34°F
Dew Point
33°F
1 PM
41°F
0%
7mph
S
Partly Cloudy
Humidity
78%
Feels like
36°F
Dew Point
34°F
2 PM
41°F
0%
7mph
S
Partly Cloudy
Humidity
80%
Feels like
36°F
Dew Point
35°F
3 PM
40°F
0%
7mph
S
Partly Cloudy
Humidity
85%
Feels like
36°F
Dew Point
36°F
4 PM
40°F
0%
6mph
S
Partly Cloudy
Humidity
89%
Feels like
35°F
Dew Point
37°F
4:24 PM
5 PM
39°F
0%
6mph
SSE
Partly Cloudy
Humidity
94%
Feels like
35°F
Dew Point
38°F
6 PM
39°F
0%
6mph
SSE
Foggy
Humidity
99%
Feels like
34°F
Dew Point
39°F
7 PM
40°F
30%
7mph
SSE
30% Chance of Light Rain
Humidity
100%
Feels like
35°F
Dew Point
40°F
8 PM
40°F
30%
8mph
S
30% Chance of Light Rain
Humidity
100%
Feels like
35°F
Dew Point
40°F
9 PM
42°F
40%
9mph
S
40% Chance of Light Rain
Humidity
100%
Feels like
36°F
Dew Point
42°F
10 PM
43°F
60%
9mph
S
60% Chance of Light Rain
Humidity
99%
Feels like
37°F
Dew Point
42°F
11 PM
44°F
70%
10mph
S
70% Chance of Light Rain
Humidity
99%
Feels like
39°F
Dew Point
44°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday'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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