Hourly Weather Forecast - Alton, MO

12 AM
33°F
0%
4mph
NW
Partly Cloudy
Humidity
74%
Feels like
29°F
Dew Point
25°F
1 AM
32°F
0%
3mph
NW
Partly Cloudy
Humidity
75%
Feels like
28°F
Dew Point
25°F
2 AM
31°F
0%
3mph
WNW
Partly Cloudy
Humidity
75%
Feels like
28°F
Dew Point
24°F
3 AM
30°F
0%
3mph
WNW
Partly Cloudy
Humidity
76%
Feels like
30°F
Dew Point
24°F
4 AM
30°F
0%
3mph
WNW
Mostly Cloudy
Humidity
77%
Feels like
30°F
Dew Point
23°F
5 AM
29°F
0%
2mph
NW
Mostly Cloudy
Humidity
77%
Feels like
29°F
Dew Point
23°F
6 AM
29°F
0%
2mph
NW
Mostly Cloudy
Humidity
77%
Feels like
29°F
Dew Point
23°F
7 AM
30°F
0%
1mph
WNW
Mostly Cloudy
Humidity
76%
Feels like
30°F
Dew Point
23°F
7:07 AM
8 AM
31°F
0%
1mph
SSW
Mostly Cloudy
Humidity
73%
Feels like
31°F
Dew Point
24°F
9 AM
33°F
0%
2mph
S
Mostly Cloudy
Humidity
69%
Feels like
33°F
Dew Point
24°F
10 AM
36°F
0%
3mph
S
Mostly Cloudy
Humidity
63%
Feels like
34°F
Dew Point
25°F
11 AM
40°F
0%
5mph
S
Mostly Cloudy
Humidity
55%
Feels like
37°F
Dew Point
25°F
12 PM
43°F
0%
6mph
S
Mostly Cloudy
Humidity
50%
Feels like
39°F
Dew Point
25°F
1 PM
45°F
0%
6mph
S
Mostly Cloudy
Humidity
47%
Feels like
41°F
Dew Point
26°F
2 PM
46°F
0%
7mph
S
Mostly Cloudy
Humidity
46%
Feels like
42°F
Dew Point
27°F
3 PM
46°F
0%
8mph
S
Mostly Cloudy
Humidity
47%
Feels like
42°F
Dew Point
28°F
4 PM
45°F
0%
8mph
S
Partly Cloudy
Humidity
51%
Feels like
41°F
Dew Point
28°F
4:49 PM
5 PM
43°F
0%
7mph
S
Mostly Clear
Humidity
57%
Feels like
39°F
Dew Point
29°F
6 PM
42°F
0%
6mph
S
Mostly Clear
Humidity
62%
Feels like
37°F
Dew Point
29°F
7 PM
41°F
0%
6mph
S
Partly Cloudy
Humidity
65%
Feels like
36°F
Dew Point
30°F
8 PM
40°F
0%
7mph
S
Mostly Cloudy
Humidity
68%
Feels like
35°F
Dew Point
30°F
9 PM
40°F
0%
6mph
SSW
Cloudy
Humidity
70%
Feels like
35°F
Dew Point
31°F
10 PM
39°F
0%
6mph
SSW
Mostly Cloudy
Humidity
72%
Feels like
35°F
Dew Point
31°F
11 PM
39°F
0%
6mph
SW
Partly Cloudy
Humidity
73%
Feels like
35°F
Dew Point
31°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