Hourly Weather Forecast - Castle Shannon, PA

6 PM
43°F
0%
2mph
W
Clear
Humidity
61%
Feels like
43°F
Dew Point
30°F
7 PM
40°F
0%
1mph
WSW
Mostly Clear
Humidity
65%
Feels like
40°F
Dew Point
29°F
8 PM
38°F
0%
1mph
SSW
Mostly Clear
Humidity
69%
Feels like
38°F
Dew Point
29°F
9 PM
37°F
0%
1mph
SSE
Partly Cloudy
Humidity
73%
Feels like
37°F
Dew Point
29°F
10 PM
36°F
0%
1mph
SE
Partly Cloudy
Humidity
75%
Feels like
36°F
Dew Point
29°F
11 PM
35°F
0%
2mph
SE
Partly Cloudy
Humidity
78%
Feels like
35°F
Dew Point
29°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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