Hourly Weather Forecast - Castle Shannon, PA

12 AM
21°F
0%
4mph
WSW
Mostly Clear
Humidity
58%
Feels like
16°F
Dew Point
9°F
1 AM
21°F
0%
4mph
WSW
Mostly Clear
Humidity
59%
Feels like
15°F
Dew Point
9°F
2 AM
20°F
0%
4mph
SW
Mostly Clear
Humidity
61%
Feels like
15°F
Dew Point
9°F
3 AM
20°F
0%
3mph
SW
Partly Cloudy
Humidity
62%
Feels like
16°F
Dew Point
9°F
4 AM
20°F
0%
3mph
SSW
Partly Cloudy
Humidity
62%
Feels like
20°F
Dew Point
10°F
5 AM
21°F
0%
3mph
SSW
Partly Cloudy
Humidity
63%
Feels like
21°F
Dew Point
10°F
6 AM
21°F
0%
3mph
S
Partly Cloudy
Humidity
63%
Feels like
17°F
Dew Point
11°F
7 AM
22°F
0%
3mph
S
Mostly Cloudy
Humidity
64%
Feels like
18°F
Dew Point
12°F
7:38 AM
8 AM
24°F
0%
4mph
S
Mostly Cloudy
Humidity
64%
Feels like
19°F
Dew Point
14°F
9 AM
26°F
0%
4mph
S
Mostly Cloudy
Humidity
61%
Feels like
22°F
Dew Point
15°F
10 AM
29°F
0%
4mph
S
Mostly Cloudy
Humidity
56%
Feels like
24°F
Dew Point
15°F
11 AM
32°F
0%
5mph
S
Mostly Cloudy
Humidity
50%
Feels like
27°F
Dew Point
15°F
12 PM
35°F
0%
5mph
S
Cloudy
Humidity
45%
Feels like
30°F
Dew Point
16°F
1 PM
38°F
0%
6mph
SSW
Cloudy
Humidity
41%
Feels like
33°F
Dew Point
16°F
2 PM
40°F
0%
6mph
SSW
Cloudy
Humidity
39%
Feels like
35°F
Dew Point
17°F
3 PM
40°F
10%
6mph
SSW
Mostly Cloudy
Humidity
40%
Feels like
36°F
Dew Point
18°F
4 PM
40°F
10%
6mph
SSW
Mostly Cloudy
Humidity
42%
Feels like
35°F
Dew Point
19°F
4:56 PM
5 PM
39°F
10%
6mph
SSW
Mostly Cloudy
Humidity
45%
Feels like
34°F
Dew Point
20°F
6 PM
38°F
10%
6mph
SSW
Cloudy
Humidity
48%
Feels like
34°F
Dew Point
20°F
7 PM
38°F
10%
6mph
SSW
Cloudy
Humidity
50%
Feels like
34°F
Dew Point
21°F
8 PM
39°F
10%
6mph
SSW
Cloudy
Humidity
51%
Feels like
34°F
Dew Point
22°F
9 PM
39°F
10%
6mph
SSW
Cloudy
Humidity
51%
Feels like
35°F
Dew Point
23°F
10 PM
40°F
10%
6mph
SSW
Cloudy
Humidity
51%
Feels like
36°F
Dew Point
23°F
11 PM
41°F
20%
6mph
SW
Cloudy
Humidity
50%
Feels like
36°F
Dew Point
24°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Tuesday's Weather Outlook

Tuesday'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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