Hourly Weather Forecast - Alton, IL

12 AM
32°F
0%
8mph
S
Mostly Cloudy
Humidity
52%
Feels like
25°F
Dew Point
17°F
1 AM
33°F
0%
9mph
SSW
Mostly Cloudy
Humidity
53%
Feels like
25°F
Dew Point
17°F
2 AM
33°F
0%
9mph
SSW
Cloudy
Humidity
54%
Feels like
26°F
Dew Point
19°F
3 AM
34°F
0%
9mph
SSW
Cloudy
Humidity
56%
Feels like
27°F
Dew Point
20°F
4 AM
34°F
0%
9mph
SSW
Cloudy
Humidity
60%
Feels like
27°F
Dew Point
22°F
5 AM
34°F
0%
8mph
SW
Cloudy
Humidity
65%
Feels like
28°F
Dew Point
24°F
6 AM
35°F
0%
8mph
SW
Cloudy
Humidity
72%
Feels like
28°F
Dew Point
26°F
7 AM
35°F
0%
8mph
SW
Mostly Cloudy
Humidity
76%
Feels like
29°F
Dew Point
28°F
7:15 AM
8 AM
37°F
0%
8mph
SW
Mostly Cloudy
Humidity
76%
Feels like
31°F
Dew Point
30°F
9 AM
38°F
0%
8mph
WSW
Partly Cloudy
Humidity
74%
Feels like
32°F
Dew Point
31°F
10 AM
40°F
0%
9mph
WSW
Partly Cloudy
Humidity
70%
Feels like
35°F
Dew Point
31°F
11 AM
42°F
0%
9mph
WSW
Partly Cloudy
Humidity
64%
Feels like
36°F
Dew Point
31°F
12 PM
43°F
0%
10mph
W
Partly Cloudy
Humidity
58%
Feels like
38°F
Dew Point
29°F
1 PM
44°F
0%
10mph
W
Mostly Sunny
Humidity
52%
Feels like
39°F
Dew Point
28°F
2 PM
44°F
0%
10mph
W
Mostly Sunny
Humidity
49%
Feels like
39°F
Dew Point
26°F
3 PM
44°F
10%
9mph
W
Mostly Sunny
Humidity
48%
Feels like
38°F
Dew Point
25°F
4 PM
42°F
20%
8mph
WNW
Mostly Sunny
Humidity
50%
Feels like
37°F
Dew Point
25°F
5 PM
40°F
30%
7mph
WNW
30% Chance Rain Showers
Humidity
52%
Feels like
36°F
Dew Point
24°F
5:09 PM
6 PM
38°F
10%
6mph
WNW
Mostly Clear
Humidity
56%
Feels like
34°F
Dew Point
24°F
7 PM
37°F
10%
5mph
WNW
Partly Cloudy
Humidity
60%
Feels like
33°F
Dew Point
24°F
8 PM
36°F
10%
5mph
W
Mostly Cloudy
Humidity
63%
Feels like
32°F
Dew Point
25°F
9 PM
35°F
10%
5mph
W
Mostly Cloudy
Humidity
64%
Feels like
31°F
Dew Point
24°F
10 PM
34°F
10%
6mph
W
Partly Cloudy
Humidity
64%
Feels like
29°F
Dew Point
23°F
11 PM
33°F
10%
6mph
WNW
Mostly Clear
Humidity
64%
Feels like
28°F
Dew Point
23°F

Snow Forecast through Sunday

Unrelenting Storm Track Brings Snow to Great Lakes & Eastern U.S.

Two main areas of low pressure will produce snow in the Upper Midwest, Great Lakes and eastern U.S.

Monday's Weather Outlook

Monday's Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(Image provided by NOAA)

Polar Vortex: What Is It?

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

Safety Tips For Icy Surfaces

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