Hourly Weather Forecast - Saint Marys, PA

12 AM
17°F
10%
11mph
WNW
Partly Cloudy
Humidity
74%
Feels like
5°F
Dew Point
10°F
1 AM
17°F
10%
10mph
WNW
Mostly Clear
Humidity
76%
Feels like
4°F
Dew Point
10°F
2 AM
16°F
10%
10mph
WNW
Mostly Clear
Humidity
79%
Feels like
4°F
Dew Point
11°F
3 AM
15°F
10%
9mph
WNW
Mostly Clear
Humidity
83%
Feels like
4°F
Dew Point
11°F
4 AM
15°F
10%
9mph
WNW
Mostly Clear
Humidity
85%
Feels like
4°F
Dew Point
11°F
5 AM
15°F
10%
8mph
WNW
Partly Cloudy
Humidity
87%
Feels like
4°F
Dew Point
12°F
6 AM
15°F
10%
7mph
WNW
Partly Cloudy
Humidity
87%
Feels like
5°F
Dew Point
12°F
7 AM
16°F
10%
7mph
WNW
Partly Cloudy
Humidity
86%
Feels like
6°F
Dew Point
13°F
7:37 AM
8 AM
18°F
10%
7mph
WNW
Partly Cloudy
Humidity
85%
Feels like
8°F
Dew Point
14°F
9 AM
20°F
10%
7mph
WNW
Partly Cloudy
Humidity
80%
Feels like
11°F
Dew Point
15°F
10 AM
23°F
10%
7mph
WNW
Partly Cloudy
Humidity
75%
Feels like
15°F
Dew Point
16°F
11 AM
25°F
10%
7mph
WNW
Mostly Cloudy
Humidity
66%
Feels like
17°F
Dew Point
16°F
12 PM
27°F
10%
6mph
WNW
Cloudy
Humidity
63%
Feels like
20°F
Dew Point
16°F
1 PM
28°F
10%
6mph
WNW
Cloudy
Humidity
61%
Feels like
21°F
Dew Point
16°F
2 PM
29°F
10%
6mph
W
Cloudy
Humidity
61%
Feels like
22°F
Dew Point
17°F
3 PM
29°F
10%
6mph
W
Cloudy
Humidity
65%
Feels like
23°F
Dew Point
18°F
4 PM
28°F
10%
5mph
W
Cloudy
Humidity
68%
Feels like
22°F
Dew Point
18°F
4:48 PM
5 PM
27°F
10%
5mph
W
Cloudy
Humidity
70%
Feels like
21°F
Dew Point
18°F
6 PM
26°F
10%
5mph
WSW
Cloudy
Humidity
74%
Feels like
20°F
Dew Point
18°F
7 PM
25°F
10%
5mph
SW
Cloudy
Humidity
75%
Feels like
19°F
Dew Point
18°F
8 PM
25°F
10%
5mph
SW
Mostly Cloudy
Humidity
77%
Feels like
19°F
Dew Point
19°F
9 PM
25°F
10%
4mph
SSW
Mostly Cloudy
Humidity
74%
Feels like
19°F
Dew Point
17°F
10 PM
24°F
20%
4mph
S
Mostly Cloudy
Humidity
73%
Feels like
19°F
Dew Point
17°F
11 PM
25°F
20%
5mph
S
Mostly Cloudy
Humidity
72%
Feels like
19°F
Dew Point
17°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

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