Hourly Weather Forecast - South Mountain, PA

12 AM
34°F
0%
11mph
SSW
Cloudy
Humidity
66%
Feels like
25°F
Dew Point
24°F
1 AM
34°F
0%
11mph
SSW
Cloudy
Humidity
65%
Feels like
26°F
Dew Point
24°F
2 AM
34°F
0%
10mph
SW
Mostly Cloudy
Humidity
66%
Feels like
26°F
Dew Point
24°F
3 AM
34°F
10%
10mph
SW
Mostly Cloudy
Humidity
68%
Feels like
26°F
Dew Point
24°F
4 AM
34°F
0%
9mph
SW
Mostly Cloudy
Humidity
70%
Feels like
26°F
Dew Point
25°F
5 AM
34°F
0%
9mph
WSW
Mostly Cloudy
Humidity
73%
Feels like
26°F
Dew Point
26°F
6 AM
33°F
0%
9mph
WSW
Mostly Cloudy
Humidity
76%
Feels like
26°F
Dew Point
27°F
7 AM
33°F
0%
9mph
W
Partly Cloudy
Humidity
78%
Feels like
26°F
Dew Point
27°F
7:27 AM
8 AM
34°F
0%
10mph
W
Partly Cloudy
Humidity
75%
Feels like
27°F
Dew Point
27°F
9 AM
35°F
0%
10mph
W
Mostly Sunny
Humidity
71%
Feels like
28°F
Dew Point
27°F
10 AM
37°F
0%
10mph
W
Sunny
Humidity
66%
Feels like
29°F
Dew Point
26°F
11 AM
37°F
0%
10mph
W
Sunny
Humidity
61%
Feels like
30°F
Dew Point
25°F
12 PM
38°F
0%
11mph
W
Sunny
Humidity
55%
Feels like
31°F
Dew Point
23°F
1 PM
38°F
0%
11mph
W
Sunny
Humidity
50%
Feels like
31°F
Dew Point
22°F
2 PM
38°F
0%
11mph
W
Sunny
Humidity
49%
Feels like
31°F
Dew Point
20°F
3 PM
37°F
0%
10mph
WNW
Sunny
Humidity
49%
Feels like
29°F
Dew Point
19°F
4 PM
35°F
0%
10mph
WNW
Sunny
Humidity
49%
Feels like
27°F
Dew Point
18°F
4:48 PM
5 PM
33°F
0%
9mph
WNW
Clear
Humidity
52%
Feels like
25°F
Dew Point
17°F
6 PM
30°F
0%
9mph
WNW
Clear
Humidity
56%
Feels like
22°F
Dew Point
17°F
7 PM
29°F
0%
9mph
WNW
Clear
Humidity
60%
Feels like
20°F
Dew Point
16°F
8 PM
28°F
0%
9mph
WNW
Clear
Humidity
61%
Feels like
19°F
Dew Point
16°F
9 PM
27°F
0%
9mph
WNW
Clear
Humidity
60%
Feels like
18°F
Dew Point
15°F
10 PM
26°F
0%
9mph
WNW
Clear
Humidity
60%
Feels like
17°F
Dew Point
14°F
11 PM
26°F
0%
9mph
WNW
Clear
Humidity
60%
Feels like
17°F
Dew Point
14°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

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

Wednesday'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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