Hourly Weather Forecast - Cornwall, PA

12 AM
29°F
10%
13mph
WNW
Partly Cloudy
Humidity
59%
Feels like
19°F
Dew Point
17°F
1 AM
29°F
0%
12mph
WNW
Partly Cloudy
Humidity
60%
Feels like
20°F
Dew Point
17°F
2 AM
29°F
0%
11mph
WNW
Partly Cloudy
Humidity
59%
Feels like
20°F
Dew Point
17°F
3 AM
28°F
0%
10mph
WNW
Mostly Clear
Humidity
60%
Feels like
19°F
Dew Point
17°F
4 AM
28°F
0%
9mph
WNW
Clear
Humidity
61%
Feels like
19°F
Dew Point
16°F
5 AM
27°F
0%
8mph
WNW
Clear
Humidity
64%
Feels like
19°F
Dew Point
17°F
6 AM
27°F
0%
6mph
W
Clear
Humidity
66%
Feels like
20°F
Dew Point
17°F
7 AM
27°F
0%
5mph
W
Clear
Humidity
68%
Feels like
21°F
Dew Point
18°F
7:24 AM
8 AM
28°F
0%
4mph
W
Sunny
Humidity
64%
Feels like
23°F
Dew Point
17°F
9 AM
29°F
0%
4mph
W
Mostly Sunny
Humidity
59%
Feels like
25°F
Dew Point
17°F
10 AM
31°F
0%
4mph
W
Mostly Sunny
Humidity
54%
Feels like
26°F
Dew Point
16°F
11 AM
32°F
0%
5mph
WSW
Mostly Sunny
Humidity
51%
Feels like
27°F
Dew Point
16°F
12 PM
33°F
0%
5mph
SW
Sunny
Humidity
50%
Feels like
28°F
Dew Point
17°F
1 PM
34°F
0%
6mph
SW
Sunny
Humidity
51%
Feels like
29°F
Dew Point
18°F
2 PM
35°F
0%
6mph
SSW
Mostly Sunny
Humidity
53%
Feels like
29°F
Dew Point
19°F
3 PM
34°F
0%
7mph
S
Mostly Sunny
Humidity
56%
Feels like
28°F
Dew Point
20°F
4 PM
34°F
0%
7mph
S
Partly Cloudy
Humidity
60%
Feels like
28°F
Dew Point
22°F
4:42 PM
5 PM
33°F
0%
7mph
S
Partly Cloudy
Humidity
64%
Feels like
27°F
Dew Point
22°F
6 PM
33°F
0%
7mph
S
Partly Cloudy
Humidity
65%
Feels like
27°F
Dew Point
23°F
7 PM
33°F
0%
7mph
S
Partly Cloudy
Humidity
66%
Feels like
27°F
Dew Point
23°F
8 PM
34°F
0%
7mph
S
Partly Cloudy
Humidity
68%
Feels like
27°F
Dew Point
24°F
9 PM
34°F
0%
7mph
S
Mostly Cloudy
Humidity
67%
Feels like
28°F
Dew Point
24°F
10 PM
35°F
0%
6mph
S
Cloudy
Humidity
65%
Feels like
30°F
Dew Point
25°F
11 PM
36°F
10%
6mph
SSW
Cloudy
Humidity
65%
Feels like
31°F
Dew Point
26°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.

Wednesday's Weather Outlook

Wednesday'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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