Hourly Weather Forecast - Saint Clair, PA

10 AM
33°F
0%
4mph
SW
Partly Cloudy
Humidity
68%
Feels like
29°F
Dew Point
23°F
11 AM
35°F
0%
4mph
SW
Mostly Cloudy
Humidity
67%
Feels like
31°F
Dew Point
26°F
12 PM
37°F
0%
5mph
WSW
Partly Cloudy
Humidity
68%
Feels like
33°F
Dew Point
28°F
1 PM
39°F
0%
6mph
W
Mostly Cloudy
Humidity
69%
Feels like
34°F
Dew Point
29°F
2 PM
40°F
0%
6mph
W
Mostly Cloudy
Humidity
70%
Feels like
35°F
Dew Point
31°F
3 PM
40°F
0%
7mph
W
Partly Cloudy
Humidity
69%
Feels like
35°F
Dew Point
31°F
4 PM
40°F
0%
7mph
WNW
Partly Cloudy
Humidity
70%
Feels like
35°F
Dew Point
31°F
4:38 PM
5 PM
39°F
0%
7mph
WNW
Mostly Clear
Humidity
73%
Feels like
34°F
Dew Point
31°F
6 PM
37°F
0%
7mph
WNW
Partly Cloudy
Humidity
75%
Feels like
32°F
Dew Point
30°F
7 PM
36°F
0%
6mph
NW
Partly Cloudy
Humidity
77%
Feels like
31°F
Dew Point
30°F
8 PM
35°F
0%
6mph
NW
Partly Cloudy
Humidity
79%
Feels like
30°F
Dew Point
29°F
9 PM
34°F
0%
5mph
NW
Partly Cloudy
Humidity
81%
Feels like
30°F
Dew Point
29°F
10 PM
33°F
0%
4mph
NW
Partly Cloudy
Humidity
83%
Feels like
30°F
Dew Point
28°F
11 PM
32°F
0%
2mph
NW
Partly Cloudy
Humidity
84%
Feels like
32°F
Dew Point
27°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

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