Hourly Weather Forecast - South Mountain, PA

12 AM
30°F
0%
1mph
S
Partly Cloudy
Humidity
90%
Feels like
30°F
Dew Point
27°F
1 AM
28°F
0%
2mph
SSE
Partly Cloudy
Humidity
91%
Feels like
28°F
Dew Point
26°F
2 AM
29°F
0%
2mph
SE
Partly Cloudy
Humidity
91%
Feels like
29°F
Dew Point
26°F
3 AM
28°F
0%
3mph
SE
Partly Cloudy
Humidity
91%
Feels like
28°F
Dew Point
26°F
4 AM
28°F
0%
3mph
SE
Partly Cloudy
Humidity
91%
Feels like
25°F
Dew Point
26°F
5 AM
28°F
0%
4mph
SE
Hazy
Humidity
92%
Feels like
23°F
Dew Point
25°F
6 AM
27°F
0%
4mph
SE
Hazy
Humidity
92%
Feels like
22°F
Dew Point
25°F
7 AM
27°F
0%
4mph
SE
Hazy
Humidity
91%
Feels like
22°F
Dew Point
25°F
7:25 AM
8 AM
29°F
0%
4mph
SSE
Sunny
Humidity
88%
Feels like
24°F
Dew Point
26°F
9 AM
31°F
0%
5mph
SSE
Sunny
Humidity
84%
Feels like
26°F
Dew Point
27°F
10 AM
34°F
0%
5mph
SSE
Sunny
Humidity
81%
Feels like
29°F
Dew Point
28°F
11 AM
36°F
0%
6mph
SSE
Mostly Sunny
Humidity
78%
Feels like
31°F
Dew Point
30°F
12 PM
38°F
0%
7mph
SSE
Partly Cloudy
Humidity
76%
Feels like
33°F
Dew Point
31°F
1 PM
39°F
0%
7mph
SSE
Partly Cloudy
Humidity
75%
Feels like
34°F
Dew Point
32°F
2 PM
40°F
0%
8mph
SSE
Partly Cloudy
Humidity
76%
Feels like
35°F
Dew Point
33°F
3 PM
40°F
10%
7mph
SSE
Partly Cloudy
Humidity
78%
Feels like
35°F
Dew Point
34°F
4 PM
40°F
20%
7mph
SSE
Mostly Sunny
Humidity
81%
Feels like
35°F
Dew Point
35°F
4:47 PM
5 PM
39°F
30%
8mph
SSE
30% Chance Rain Showers
Humidity
85%
Feels like
34°F
Dew Point
35°F
6 PM
39°F
40%
9mph
SSE
40% Chance Rain Showers
Humidity
90%
Feels like
33°F
Dew Point
36°F
7 PM
38°F
50%
9mph
SSE
50% Chance of Light Rain
Humidity
94%
Feels like
32°F
Dew Point
37°F
8 PM
39°F
60%
11mph
SSE
60% Chance of Light Rain
Humidity
96%
Feels like
32°F
Dew Point
38°F
9 PM
40°F
70%
11mph
SSE
70% Chance of Light Rain
Humidity
97%
Feels like
34°F
Dew Point
40°F
10 PM
42°F
70%
12mph
SSE
70% Chance of Light Rain
Humidity
99%
Feels like
35°F
Dew Point
41°F
11 PM
43°F
80%
13mph
SSE
80% Chance of Light Rain
Humidity
100%
Feels like
36°F
Dew Point
43°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