Hourly Weather Forecast - Dennison, IL

4:26 PM
5 PM
41°F
10%
14mph
S
Mostly Cloudy
Humidity
70%
Feels like
34°F
Dew Point
32°F
6 PM
41°F
10%
15mph
S
Cloudy
Humidity
71%
Feels like
33°F
Dew Point
32°F
7 PM
40°F
10%
15mph
SSW
Cloudy
Humidity
74%
Feels like
32°F
Dew Point
33°F
8 PM
40°F
10%
17mph
SSW
Cloudy
Humidity
76%
Feels like
32°F
Dew Point
33°F
9 PM
40°F
10%
18mph
SSW
Cloudy
Humidity
77%
Feels like
31°F
Dew Point
34°F
10 PM
40°F
10%
19mph
SSW
Cloudy
Humidity
78%
Feels like
31°F
Dew Point
34°F
11 PM
40°F
30%
19mph
SSW
30% Chance of Light Rain
Humidity
77%
Feels like
31°F
Dew Point
34°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

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Outdoor Sports Guide