Hourly Weather Forecast - South Mountain, PA

9 AM
38°F
0%
8mph
WSW
Partly Cloudy
Humidity
77%
Feels like
32°F
Dew Point
32°F
10 AM
40°F
0%
8mph
WSW
Partly Cloudy
Humidity
74%
Feels like
35°F
Dew Point
33°F
11 AM
42°F
0%
9mph
WSW
Partly Cloudy
Humidity
70%
Feels like
37°F
Dew Point
33°F
12 PM
43°F
0%
9mph
WSW
Partly Cloudy
Humidity
65%
Feels like
38°F
Dew Point
33°F
1 PM
44°F
0%
9mph
WSW
Mostly Cloudy
Humidity
63%
Feels like
39°F
Dew Point
32°F
2 PM
44°F
0%
9mph
WSW
Mostly Cloudy
Humidity
63%
Feels like
39°F
Dew Point
33°F
3 PM
44°F
0%
9mph
W
Mostly Cloudy
Humidity
65%
Feels like
39°F
Dew Point
33°F
4 PM
42°F
0%
8mph
W
Partly Cloudy
Humidity
67%
Feels like
37°F
Dew Point
32°F
4:46 PM
5 PM
40°F
0%
8mph
WNW
Partly Cloudy
Humidity
72%
Feels like
34°F
Dew Point
31°F
6 PM
36°F
0%
7mph
WNW
Partly Cloudy
Humidity
78%
Feels like
30°F
Dew Point
30°F
7 PM
33°F
0%
6mph
NW
Partly Cloudy
Humidity
83%
Feels like
27°F
Dew Point
29°F
8 PM
32°F
0%
6mph
NW
Partly Cloudy
Humidity
86%
Feels like
27°F
Dew Point
29°F
9 PM
31°F
0%
4mph
NW
Partly Cloudy
Humidity
88%
Feels like
27°F
Dew Point
28°F
10 PM
31°F
0%
3mph
NW
Mostly Cloudy
Humidity
90%
Feels like
28°F
Dew Point
28°F
11 PM
30°F
0%
2mph
NNW
Mostly Cloudy
Humidity
91%
Feels like
30°F
Dew Point
28°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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide