Hourly Weather Forecast - Castle Shannon, PA

12 AM
29°F
10%
2mph
SE
Mostly Cloudy
Humidity
63%
Feels like
29°F
Dew Point
19°F
1 AM
29°F
20%
2mph
SE
Cloudy
Humidity
65%
Feels like
29°F
Dew Point
19°F
2 AM
29°F
20%
2mph
SSE
Cloudy
Humidity
68%
Feels like
29°F
Dew Point
20°F
3 AM
29°F
20%
2mph
SSE
Cloudy
Humidity
70%
Feels like
29°F
Dew Point
21°F
4 AM
30°F
30%
3mph
S
30% Chance Freezing Rain
Humidity
71%
Feels like
30°F
Dew Point
22°F
5 AM
31°F
30%
3mph
S
30% Chance Freezing Rain
Humidity
71%
Feels like
28°F
Dew Point
23°F
6 AM
32°F
30%
3mph
S
30% Chance Freezing Rain
Humidity
73%
Feels like
29°F
Dew Point
24°F
7 AM
33°F
30%
4mph
S
30% Chance of Light Rain
Humidity
76%
Feels like
30°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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