Hourly Weather Forecast - Castleton, IL

8 PM
9°F
0%
8mph
N
Mostly Clear
Humidity
78%
Feels like
-3°F
Dew Point
4°F
9 PM
8°F
0%
7mph
NNE
Mostly Clear
Humidity
77%
Feels like
-4°F
Dew Point
2°F
10 PM
7°F
0%
6mph
NNE
Mostly Clear
Humidity
77%
Feels like
-4°F
Dew Point
1°F
11 PM
7°F
0%
6mph
NNE
Partly Cloudy
Humidity
76%
Feels like
-3°F
Dew Point
1°F

Monday's Weather Outlook

Monday's Weather Outlook

An active pattern across the U.S. Northern Tier and Southeast brings wet, wintry precipitation across the eastern half of the nation.

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)

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Image courtesy of PeakPX.

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Flu Update Valid For Week Ending March 29, 2025

Weekly Flu Update: Flu Continues to Climb

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