Hourly Weather Forecast - Altamont, IL

4:32 PM
5 PM
40°F
10%
11mph
SSW
Mostly Cloudy
Humidity
94%
Feels like
33°F
Dew Point
38°F
6 PM
39°F
10%
11mph
SSW
Cloudy
Humidity
92%
Feels like
32°F
Dew Point
37°F
7 PM
39°F
10%
12mph
SSW
Cloudy
Humidity
92%
Feels like
32°F
Dew Point
37°F
8 PM
40°F
0%
13mph
SSW
Cloudy
Humidity
92%
Feels like
32°F
Dew Point
37°F
9 PM
40°F
10%
14mph
SSW
Cloudy
Humidity
92%
Feels like
32°F
Dew Point
38°F
10 PM
40°F
10%
14mph
SSW
Cloudy
Humidity
92%
Feels like
32°F
Dew Point
38°F
11 PM
40°F
10%
14mph
SW
Cloudy
Humidity
90%
Feels like
32°F
Dew Point
38°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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Traffic Cameras

Weather Cameras

Outdoor Sports Guide