Hourly Weather Forecast - Alton, MO

12 AM
39°F
0%
6mph
SW
Partly Cloudy
Humidity
74%
Feels like
35°F
Dew Point
32°F
1 AM
39°F
0%
6mph
SW
Partly Cloudy
Humidity
74%
Feels like
35°F
Dew Point
32°F
2 AM
40°F
0%
6mph
SW
Partly Cloudy
Humidity
73%
Feels like
36°F
Dew Point
32°F
3 AM
40°F
0%
5mph
SW
Partly Cloudy
Humidity
74%
Feels like
36°F
Dew Point
32°F
4 AM
39°F
0%
5mph
WSW
Mostly Clear
Humidity
75%
Feels like
35°F
Dew Point
32°F
5 AM
39°F
0%
5mph
WSW
Clear
Humidity
77%
Feels like
35°F
Dew Point
32°F
6 AM
39°F
0%
5mph
W
Clear
Humidity
78%
Feels like
35°F
Dew Point
33°F
7 AM
40°F
0%
6mph
W
Mostly Clear
Humidity
77%
Feels like
37°F
Dew Point
34°F
7:08 AM
8 AM
42°F
0%
6mph
W
Partly Cloudy
Humidity
75%
Feels like
39°F
Dew Point
35°F
9 AM
45°F
0%
6mph
WNW
Partly Cloudy
Humidity
72%
Feels like
41°F
Dew Point
37°F
10 AM
47°F
0%
7mph
WNW
Partly Cloudy
Humidity
67%
Feels like
44°F
Dew Point
37°F
11 AM
51°F
0%
8mph
NW
Partly Cloudy
Humidity
60%
Feels like
51°F
Dew Point
37°F
12 PM
53°F
0%
9mph
NW
Partly Cloudy
Humidity
55%
Feels like
53°F
Dew Point
37°F
1 PM
54°F
0%
8mph
NW
Partly Cloudy
Humidity
52%
Feels like
54°F
Dew Point
37°F
2 PM
54°F
0%
8mph
NNW
Mostly Sunny
Humidity
51%
Feels like
54°F
Dew Point
36°F
3 PM
53°F
0%
7mph
NNW
Sunny
Humidity
51%
Feels like
53°F
Dew Point
35°F
4 PM
50°F
0%
7mph
NNW
Sunny
Humidity
55%
Feels like
50°F
Dew Point
34°F
4:49 PM
5 PM
46°F
0%
7mph
NNW
Clear
Humidity
60%
Feels like
43°F
Dew Point
33°F
6 PM
43°F
0%
6mph
N
Clear
Humidity
65%
Feels like
39°F
Dew Point
32°F
7 PM
40°F
0%
6mph
N
Clear
Humidity
68%
Feels like
36°F
Dew Point
31°F
8 PM
38°F
0%
6mph
N
Clear
Humidity
72%
Feels like
34°F
Dew Point
30°F
9 PM
37°F
0%
5mph
N
Clear
Humidity
75%
Feels like
32°F
Dew Point
29°F
10 PM
35°F
0%
5mph
N
Clear
Humidity
78%
Feels like
30°F
Dew Point
28°F
11 PM
33°F
0%
4mph
N
Clear
Humidity
81%
Feels like
29°F
Dew Point
28°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

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide