Hourly Weather Forecast - Castle Shannon, PA

12 AM
29°F
10%
9mph
WNW
Cloudy
Humidity
77%
Feels like
21°F
Dew Point
23°F
1 AM
28°F
10%
9mph
WNW
Cloudy
Humidity
73%
Feels like
20°F
Dew Point
21°F
2 AM
27°F
10%
9mph
WNW
Cloudy
Humidity
73%
Feels like
18°F
Dew Point
20°F
3 AM
26°F
0%
9mph
WNW
Cloudy
Humidity
74%
Feels like
17°F
Dew Point
19°F
4 AM
25°F
0%
9mph
WNW
Mostly Cloudy
Humidity
75%
Feels like
16°F
Dew Point
18°F
5 AM
24°F
0%
8mph
WNW
Mostly Cloudy
Humidity
74%
Feels like
15°F
Dew Point
17°F
6 AM
24°F
0%
9mph
W
Partly Cloudy
Humidity
69%
Feels like
15°F
Dew Point
15°F
7 AM
24°F
0%
8mph
W
Partly Cloudy
Humidity
68%
Feels like
14°F
Dew Point
15°F
7:32 AM
8 AM
24°F
0%
9mph
W
Partly Cloudy
Humidity
68%
Feels like
14°F
Dew Point
15°F
9 AM
24°F
0%
9mph
W
Partly Cloudy
Humidity
66%
Feels like
15°F
Dew Point
14°F
10 AM
25°F
0%
9mph
W
Partly Cloudy
Humidity
64%
Feels like
15°F
Dew Point
14°F
11 AM
25°F
10%
9mph
W
Mostly Cloudy
Humidity
62%
Feels like
16°F
Dew Point
14°F
12 PM
26°F
10%
10mph
W
Mostly Cloudy
Humidity
61%
Feels like
16°F
Dew Point
14°F
1 PM
26°F
10%
10mph
W
Cloudy
Humidity
60%
Feels like
17°F
Dew Point
14°F
2 PM
26°F
10%
10mph
W
Cloudy
Humidity
60%
Feels like
17°F
Dew Point
14°F
3 PM
26°F
0%
9mph
W
Cloudy
Humidity
61%
Feels like
17°F
Dew Point
14°F
4 PM
25°F
0%
8mph
W
Mostly Cloudy
Humidity
63%
Feels like
17°F
Dew Point
15°F
4:53 PM
5 PM
25°F
0%
8mph
W
Mostly Cloudy
Humidity
64%
Feels like
17°F
Dew Point
15°F
6 PM
25°F
0%
7mph
W
Mostly Cloudy
Humidity
66%
Feels like
18°F
Dew Point
15°F
7 PM
26°F
0%
6mph
W
Mostly Cloudy
Humidity
68%
Feels like
18°F
Dew Point
17°F
8 PM
26°F
0%
6mph
W
Mostly Cloudy
Humidity
69%
Feels like
19°F
Dew Point
17°F
9 PM
26°F
0%
6mph
W
Partly Cloudy
Humidity
70%
Feels like
19°F
Dew Point
17°F
10 PM
25°F
0%
6mph
W
Partly Cloudy
Humidity
69%
Feels like
19°F
Dew Point
17°F
11 PM
25°F
0%
5mph
W
Partly Cloudy
Humidity
69%
Feels like
19°F
Dew Point
17°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide