Hourly Weather Forecast - South Mountain, PA

6 AM
26°F
10%
9mph
SSW
Cloudy
Humidity
94%
Feels like
17°F
Dew Point
25°F
7 AM
27°F
10%
9mph
SSW
Cloudy
Humidity
92%
Feels like
18°F
Dew Point
25°F
7:20 AM
8 AM
29°F
10%
10mph
SSW
Cloudy
Humidity
89%
Feels like
20°F
Dew Point
26°F
9 AM
30°F
10%
10mph
SSW
Cloudy
Humidity
84%
Feels like
22°F
Dew Point
26°F
10 AM
32°F
10%
10mph
SSW
Cloudy
Humidity
81%
Feels like
24°F
Dew Point
27°F
11 AM
33°F
20%
11mph
SSW
Cloudy
Humidity
80%
Feels like
25°F
Dew Point
28°F
12 PM
34°F
20%
10mph
SSW
Cloudy
Humidity
79%
Feels like
26°F
Dew Point
28°F
1 PM
35°F
30%
9mph
SSW
30% Chance of Light Rain
Humidity
79%
Feels like
28°F
Dew Point
29°F
2 PM
35°F
30%
8mph
SSW
30% Chance of Light Rain
Humidity
81%
Feels like
29°F
Dew Point
30°F
3 PM
35°F
50%
8mph
SW
50% Chance of Light Rain
Humidity
85%
Feels like
29°F
Dew Point
31°F
4 PM
35°F
40%
7mph
SW
40% Chance of Light Rain
Humidity
88%
Feels like
29°F
Dew Point
32°F
4:45 PM
5 PM
35°F
30%
8mph
SW
30% Chance of Light Rain
Humidity
90%
Feels like
29°F
Dew Point
33°F
6 PM
35°F
10%
9mph
SW
Cloudy
Humidity
92%
Feels like
28°F
Dew Point
33°F
7 PM
34°F
10%
10mph
WSW
Mostly Cloudy
Humidity
95%
Feels like
27°F
Dew Point
33°F
8 PM
34°F
10%
10mph
WSW
Mostly Cloudy
Humidity
95%
Feels like
26°F
Dew Point
32°F
9 PM
33°F
0%
12mph
WSW
Partly Cloudy
Humidity
93%
Feels like
24°F
Dew Point
31°F
10 PM
33°F
0%
12mph
W
Partly Cloudy
Humidity
90%
Feels like
23°F
Dew Point
30°F
11 PM
32°F
0%
12mph
W
Partly Cloudy
Humidity
88%
Feels like
23°F
Dew Point
29°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

Today's Weather Outlook

Today'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