Hourly Weather Forecast - South Mountain, PA

12 AM
31°F
0%
13mph
WNW
Partly Cloudy
Humidity
86%
Feels like
22°F
Dew Point
28°F
1 AM
30°F
0%
13mph
WNW
Mostly Cloudy
Humidity
83%
Feels like
20°F
Dew Point
26°F
2 AM
29°F
0%
14mph
WNW
Partly Cloudy
Humidity
79%
Feels like
19°F
Dew Point
24°F
3 AM
28°F
0%
13mph
WNW
Partly Cloudy
Humidity
76%
Feels like
17°F
Dew Point
22°F
4 AM
27°F
0%
13mph
WNW
Mostly Clear
Humidity
73%
Feels like
16°F
Dew Point
19°F
5 AM
26°F
0%
13mph
WNW
Partly Cloudy
Humidity
71%
Feels like
14°F
Dew Point
18°F
6 AM
24°F
0%
13mph
WNW
Partly Cloudy
Humidity
70%
Feels like
13°F
Dew Point
16°F
7 AM
24°F
0%
13mph
WNW
Mostly Cloudy
Humidity
69%
Feels like
12°F
Dew Point
15°F
7:20 AM
8 AM
24°F
0%
14mph
WNW
Partly Cloudy
Humidity
66%
Feels like
11°F
Dew Point
14°F
9 AM
24°F
0%
14mph
WNW
Partly Cloudy
Humidity
62%
Feels like
12°F
Dew Point
13°F
10 AM
24°F
10%
14mph
WNW
Partly Cloudy
Humidity
59%
Feels like
12°F
Dew Point
12°F
11 AM
25°F
10%
14mph
WNW
Partly Cloudy
Humidity
56%
Feels like
13°F
Dew Point
12°F
12 PM
26°F
10%
14mph
WNW
Partly Cloudy
Humidity
54%
Feels like
14°F
Dew Point
11°F
1 PM
26°F
10%
14mph
WNW
Partly Cloudy
Humidity
53%
Feels like
15°F
Dew Point
11°F
2 PM
26°F
10%
13mph
WNW
Partly Cloudy
Humidity
52%
Feels like
15°F
Dew Point
11°F
3 PM
26°F
10%
13mph
WNW
Partly Cloudy
Humidity
52%
Feels like
14°F
Dew Point
11°F
4 PM
25°F
10%
13mph
W
Partly Cloudy
Humidity
54%
Feels like
14°F
Dew Point
11°F
4:45 PM
5 PM
24°F
10%
12mph
W
Partly Cloudy
Humidity
56%
Feels like
13°F
Dew Point
11°F
6 PM
23°F
10%
12mph
W
Partly Cloudy
Humidity
60%
Feels like
12°F
Dew Point
11°F
7 PM
22°F
10%
12mph
W
Mostly Clear
Humidity
63%
Feels like
11°F
Dew Point
12°F
8 PM
22°F
10%
12mph
W
Mostly Clear
Humidity
64%
Feels like
10°F
Dew Point
12°F
9 PM
22°F
0%
12mph
W
Mostly Clear
Humidity
64%
Feels like
10°F
Dew Point
12°F
10 PM
22°F
0%
12mph
W
Mostly Clear
Humidity
65%
Feels like
11°F
Dew Point
12°F
11 PM
22°F
0%
11mph
W
Mostly Clear
Humidity
65%
Feels like
11°F
Dew Point
12°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide