Hourly Weather Forecast - Derry, PA

12 AM
21°F
0%
6mph
W
Clear
Humidity
61%
Feels like
13°F
Dew Point
10°F
1 AM
21°F
0%
6mph
W
Clear
Humidity
62%
Feels like
13°F
Dew Point
10°F
2 AM
20°F
0%
6mph
W
Clear
Humidity
63%
Feels like
13°F
Dew Point
10°F
3 AM
20°F
0%
5mph
W
Mostly Clear
Humidity
66%
Feels like
12°F
Dew Point
10°F
4 AM
19°F
0%
5mph
W
Partly Cloudy
Humidity
67%
Feels like
12°F
Dew Point
10°F
5 AM
19°F
0%
4mph
W
Partly Cloudy
Humidity
69%
Feels like
12°F
Dew Point
10°F
6 AM
19°F
0%
4mph
W
Mostly Cloudy
Humidity
68%
Feels like
12°F
Dew Point
10°F
7 AM
19°F
0%
4mph
W
Cloudy
Humidity
69%
Feels like
13°F
Dew Point
11°F
7:36 AM
8 AM
21°F
0%
4mph
W
Cloudy
Humidity
67%
Feels like
16°F
Dew Point
11°F
9 AM
23°F
0%
3mph
WSW
Cloudy
Humidity
64%
Feels like
19°F
Dew Point
13°F
10 AM
26°F
0%
4mph
WSW
Cloudy
Humidity
60%
Feels like
22°F
Dew Point
14°F
11 AM
28°F
0%
4mph
W
Cloudy
Humidity
54%
Feels like
24°F
Dew Point
14°F
12 PM
30°F
0%
4mph
W
Cloudy
Humidity
49%
Feels like
26°F
Dew Point
13°F
1 PM
31°F
0%
4mph
W
Cloudy
Humidity
46%
Feels like
27°F
Dew Point
13°F
2 PM
32°F
0%
4mph
WSW
Cloudy
Humidity
46%
Feels like
28°F
Dew Point
14°F
3 PM
33°F
10%
4mph
WSW
Mostly Cloudy
Humidity
46%
Feels like
29°F
Dew Point
15°F
4 PM
33°F
10%
4mph
WSW
Mostly Cloudy
Humidity
48%
Feels like
29°F
Dew Point
15°F
4:54 PM
5 PM
32°F
10%
3mph
SW
Mostly Cloudy
Humidity
50%
Feels like
29°F
Dew Point
15°F
6 PM
30°F
10%
3mph
S
Cloudy
Humidity
56%
Feels like
27°F
Dew Point
16°F
7 PM
29°F
10%
4mph
SSE
Cloudy
Humidity
60%
Feels like
25°F
Dew Point
17°F
8 PM
28°F
10%
4mph
SSE
Mostly Cloudy
Humidity
63%
Feels like
23°F
Dew Point
17°F
9 PM
28°F
30%
4mph
SSE
30 % Chance of Heavy Snow
Humidity
63%
Feels like
23°F
Dew Point
17°F
10 PM
28°F
30%
4mph
SSE
30 % Chance of Heavy Snow
Humidity
62%
Feels like
24°F
Dew Point
17°F
11 PM
28°F
10%
4mph
SSE
Mostly Cloudy
Humidity
61%
Feels like
24°F
Dew Point
17°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday'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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