Hourly Weather Forecast - Saint Clair, PA

12 AM
46°F
20%
2mph
SSE
Hazy
Humidity
94%
Feels like
46°F
Dew Point
44°F
1 AM
45°F
20%
2mph
SSE
Hazy
Humidity
94%
Feels like
45°F
Dew Point
44°F
2 AM
45°F
20%
2mph
SSE
Hazy
Humidity
96%
Feels like
45°F
Dew Point
44°F
3 AM
44°F
20%
2mph
SSE
Hazy
Humidity
98%
Feels like
44°F
Dew Point
43°F
4 AM
43°F
20%
1mph
SSE
Foggy
Humidity
100%
Feels like
43°F
Dew Point
43°F
5 AM
43°F
10%
1mph
SSE
Foggy
Humidity
100%
Feels like
43°F
Dew Point
43°F
6 AM
43°F
10%
1mph
SSE
Hazy
Humidity
98%
Feels like
43°F
Dew Point
43°F
6:29 AM
7 AM
45°F
10%
1mph
S
Hazy
Humidity
93%
Feels like
45°F
Dew Point
43°F
8 AM
48°F
10%
1mph
S
Mostly Sunny
Humidity
87%
Feels like
48°F
Dew Point
44°F
9 AM
51°F
10%
2mph
SSW
Mostly Sunny
Humidity
83%
Feels like
51°F
Dew Point
46°F
10 AM
54°F
10%
2mph
SSW
Mostly Sunny
Humidity
78%
Feels like
54°F
Dew Point
47°F
11 AM
57°F
10%
2mph
SSW
Mostly Sunny
Humidity
74%
Feels like
57°F
Dew Point
49°F
12 PM
59°F
10%
3mph
SSW
Partly Cloudy
Humidity
72%
Feels like
59°F
Dew Point
51°F
1 PM
62°F
10%
4mph
SW
Partly Cloudy
Humidity
70%
Feels like
62°F
Dew Point
52°F
2 PM
64°F
10%
4mph
SW
Partly Cloudy
Humidity
69%
Feels like
64°F
Dew Point
53°F

Snow and Ice Accumulations through Tuesday AM

Wintry Disturbance Bisects U.S. Mid-Latitudes

A wintry disturbance will bring icing and light snow from the central Plains today through the Northeast on Tuesday.

Today's Weather Outlook

Monday's Weather Outlook

Weekly Drought Map for February 26, 2026

Widespread Drought Degradation For South, Southeast; Mixed Results Elsewhere

Debris flies through the air as howling winds accompanied by a line of storms approach the old Tarrant County Courthouse in downtown Fort Worth, Texas, on March 2, 2023. (Tom Fox/The Dallas Morning News via AP)

Lightning Season Rapidly Approaching: Best Safety Practices

Rocky Mountain National Park at day in December. (NPS Natural Resources/Wikimedia Commons)

Snowmelt and Flooding

U.S. Route 52 near St. Donatus between Bellevue and Dubuque, Iowa. (Tony Webster from Portland, Oregon)

Winter Weather Driving Safety Tips

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