Hourly Weather Forecast - South Mountain, PA

12 AM
17°F
0%
13mph
NW
Partly Cloudy
Humidity
68%
Feels like
3°F
Dew Point
8°F
1 AM
17°F
0%
12mph
NW
Mostly Clear
Humidity
68%
Feels like
4°F
Dew Point
8°F
2 AM
17°F
0%
12mph
NW
Mostly Clear
Humidity
67%
Feels like
3°F
Dew Point
8°F
3 AM
17°F
0%
12mph
NW
Mostly Clear
Humidity
67%
Feels like
4°F
Dew Point
8°F
4 AM
17°F
0%
11mph
NW
Mostly Clear
Humidity
67%
Feels like
4°F
Dew Point
8°F
5 AM
16°F
0%
11mph
NW
Partly Cloudy
Humidity
69%
Feels like
4°F
Dew Point
8°F
6 AM
15°F
0%
10mph
NW
Partly Cloudy
Humidity
70%
Feels like
3°F
Dew Point
8°F
7 AM
15°F
0%
9mph
NW
Partly Cloudy
Humidity
70%
Feels like
4°F
Dew Point
8°F
7:23 AM
8 AM
16°F
0%
9mph
NW
Partly Cloudy
Humidity
69%
Feels like
5°F
Dew Point
8°F
9 AM
18°F
0%
9mph
NW
Partly Cloudy
Humidity
66%
Feels like
7°F
Dew Point
8°F
10 AM
19°F
0%
9mph
NW
Mostly Sunny
Humidity
63%
Feels like
9°F
Dew Point
9°F
11 AM
21°F
0%
9mph
NW
Mostly Sunny
Humidity
60%
Feels like
11°F
Dew Point
9°F
12 PM
23°F
0%
9mph
WNW
Mostly Sunny
Humidity
57%
Feels like
13°F
Dew Point
10°F
1 PM
24°F
0%
8mph
WNW
Mostly Sunny
Humidity
55%
Feels like
15°F
Dew Point
10°F
2 PM
24°F
0%
8mph
WNW
Sunny
Humidity
54%
Feels like
16°F
Dew Point
10°F
3 PM
24°F
0%
7mph
WNW
Sunny
Humidity
54%
Feels like
16°F
Dew Point
10°F
4 PM
24°F
10%
6mph
WNW
Sunny
Humidity
55%
Feels like
16°F
Dew Point
10°F
4:46 PM
5 PM
23°F
10%
6mph
W
Mostly Clear
Humidity
57%
Feels like
15°F
Dew Point
10°F
6 PM
21°F
10%
5mph
W
Partly Cloudy
Humidity
61%
Feels like
14°F
Dew Point
10°F
7 PM
20°F
10%
5mph
WSW
Partly Cloudy
Humidity
63%
Feels like
13°F
Dew Point
10°F
8 PM
20°F
10%
6mph
WSW
Mostly Cloudy
Humidity
63%
Feels like
12°F
Dew Point
10°F
9 PM
20°F
10%
6mph
WSW
Mostly Cloudy
Humidity
62%
Feels like
12°F
Dew Point
9°F
10 PM
20°F
10%
6mph
WSW
Mostly Cloudy
Humidity
61%
Feels like
12°F
Dew Point
9°F
11 PM
20°F
10%
6mph
SW
Partly Cloudy
Humidity
61%
Feels like
12°F
Dew Point
9°F

Snow and ice forecast through Friday A.M.

Multiple Snow Threats Across the Northern U.S.

Multiple systems will bring snow across the Northern U.S. through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Unrelenting Rains Soak the Northwest

Thursday's Weather Outlook

Thursday'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