Hourly Weather Forecast - Altamont, IL

12 AM
29°F
20%
8mph
S
Clear
Humidity
76%
Feels like
21°F
Dew Point
22°F
1 AM
29°F
20%
8mph
S
Clear
Humidity
77%
Feels like
21°F
Dew Point
23°F
2 AM
30°F
20%
9mph
S
Clear
Humidity
78%
Feels like
22°F
Dew Point
24°F
3 AM
31°F
20%
9mph
S
Clear
Humidity
79%
Feels like
23°F
Dew Point
25°F
4 AM
31°F
20%
9mph
S
Partly Cloudy
Humidity
80%
Feels like
23°F
Dew Point
26°F
5 AM
31°F
20%
10mph
S
Mostly Cloudy
Humidity
80%
Feels like
23°F
Dew Point
26°F
6 AM
32°F
20%
10mph
S
Cloudy
Humidity
82%
Feels like
23°F
Dew Point
27°F
7 AM
33°F
20%
10mph
S
Cloudy
Humidity
81%
Feels like
25°F
Dew Point
28°F
7:09 AM
8 AM
35°F
20%
10mph
S
Cloudy
Humidity
77%
Feels like
27°F
Dew Point
28°F
9 AM
37°F
20%
10mph
S
Cloudy
Humidity
74%
Feels like
30°F
Dew Point
29°F
10 AM
40°F
20%
11mph
SSW
Mostly Cloudy
Humidity
70%
Feels like
34°F
Dew Point
31°F
11 AM
43°F
20%
11mph
SSW
Mostly Cloudy
Humidity
66%
Feels like
37°F
Dew Point
32°F
12 PM
45°F
20%
11mph
SSW
Partly Cloudy
Humidity
64%
Feels like
39°F
Dew Point
34°F
1 PM
47°F
20%
10mph
SSW
Mostly Cloudy
Humidity
62%
Feels like
42°F
Dew Point
35°F
2 PM
47°F
20%
9mph
SW
Cloudy
Humidity
63%
Feels like
43°F
Dew Point
35°F
3 PM
47°F
20%
7mph
SW
Cloudy
Humidity
66%
Feels like
43°F
Dew Point
36°F
4 PM
45°F
20%
6mph
WSW
Cloudy
Humidity
72%
Feels like
41°F
Dew Point
36°F
4:35 PM
5 PM
42°F
20%
6mph
W
Cloudy
Humidity
78%
Feels like
39°F
Dew Point
36°F
6 PM
40°F
10%
6mph
WNW
Mostly Cloudy
Humidity
83%
Feels like
37°F
Dew Point
36°F
7 PM
39°F
10%
6mph
WNW
Partly Cloudy
Humidity
85%
Feels like
34°F
Dew Point
35°F
8 PM
37°F
10%
7mph
NW
Partly Cloudy
Humidity
88%
Feels like
32°F
Dew Point
34°F
9 PM
36°F
10%
7mph
NW
Partly Cloudy
Humidity
90%
Feels like
30°F
Dew Point
33°F
10 PM
34°F
0%
7mph
NW
Mostly Clear
Humidity
89%
Feels like
28°F
Dew Point
31°F
11 PM
33°F
0%
6mph
NW
Mostly Clear
Humidity
87%
Feels like
27°F
Dew Point
29°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday'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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