Hourly Weather Forecast - Saint Marys, PA

1 AM
27°F
0%
3mph
SE
Hazy
Humidity
91%
Feels like
27°F
Dew Point
25°F
2 AM
26°F
0%
3mph
ESE
Hazy
Humidity
92%
Feels like
21°F
Dew Point
24°F
3 AM
24°F
0%
4mph
SE
Hazy
Humidity
93%
Feels like
19°F
Dew Point
23°F
4 AM
24°F
0%
4mph
SE
Hazy
Humidity
93%
Feels like
18°F
Dew Point
22°F
5 AM
24°F
0%
5mph
ESE
Hazy
Humidity
93%
Feels like
18°F
Dew Point
22°F
6 AM
25°F
0%
5mph
ESE
Hazy
Humidity
91%
Feels like
18°F
Dew Point
22°F
7 AM
26°F
0%
6mph
ESE
Mostly Clear
Humidity
87%
Feels like
20°F
Dew Point
23°F
7:35 AM
8 AM
29°F
0%
7mph
SE
Mostly Sunny
Humidity
84%
Feels like
22°F
Dew Point
25°F
9 AM
33°F
0%
8mph
SSE
Mostly Sunny
Humidity
80%
Feels like
26°F
Dew Point
28°F
10 AM
37°F
0%
9mph
SSE
Partly Cloudy
Humidity
75%
Feels like
30°F
Dew Point
29°F
11 AM
39°F
0%
10mph
SSE
Partly Cloudy
Humidity
70%
Feels like
32°F
Dew Point
30°F
12 PM
40°F
0%
11mph
SSE
Mostly Sunny
Humidity
68%
Feels like
33°F
Dew Point
30°F
1 PM
41°F
0%
11mph
SSE
Mostly Sunny
Humidity
67%
Feels like
34°F
Dew Point
31°F
2 PM
41°F
0%
11mph
SSE
Sunny
Humidity
68%
Feels like
34°F
Dew Point
31°F
3 PM
41°F
0%
11mph
SSE
Mostly Sunny
Humidity
69%
Feels like
34°F
Dew Point
31°F
4 PM
40°F
0%
11mph
SSE
Partly Cloudy
Humidity
71%
Feels like
34°F
Dew Point
32°F
4:46 PM
5 PM
40°F
10%
11mph
SSE
Mostly Cloudy
Humidity
73%
Feels like
33°F
Dew Point
32°F
6 PM
39°F
10%
12mph
SSE
Mostly Cloudy
Humidity
77%
Feels like
32°F
Dew Point
33°F
7 PM
39°F
40%
11mph
SSE
40% Chance of Light Rain
Humidity
81%
Feels like
32°F
Dew Point
34°F
8 PM
39°F
60%
11mph
SSE
60% Chance of Light Rain
Humidity
84%
Feels like
32°F
Dew Point
35°F
9 PM
40°F
80%
12mph
SSE
80% Chance of Light Rain
Humidity
86%
Feels like
32°F
Dew Point
36°F
10 PM
40°F
80%
13mph
SSE
80% Chance of Light Rain
Humidity
90%
Feels like
33°F
Dew Point
38°F
11 PM
41°F
70%
14mph
SSE
70% Chance of Light Rain
Humidity
91%
Feels like
34°F
Dew Point
39°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday'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