Hourly Weather Forecast - Alton, MO

12 AM
40°F
0%
10mph
SW
Partly Cloudy
Humidity
84%
Feels like
34°F
Dew Point
36°F
1 AM
41°F
0%
10mph
SW
Mostly Cloudy
Humidity
84%
Feels like
35°F
Dew Point
36°F
2 AM
41°F
0%
10mph
SW
Mostly Cloudy
Humidity
82%
Feels like
35°F
Dew Point
36°F
3 AM
42°F
0%
10mph
WSW
Mostly Cloudy
Humidity
81%
Feels like
36°F
Dew Point
36°F
4 AM
42°F
0%
9mph
W
Mostly Cloudy
Humidity
80%
Feels like
37°F
Dew Point
36°F
5 AM
42°F
0%
9mph
W
Mostly Cloudy
Humidity
79%
Feels like
37°F
Dew Point
37°F
6 AM
43°F
0%
10mph
WNW
Partly Cloudy
Humidity
77%
Feels like
38°F
Dew Point
36°F
7 AM
44°F
0%
11mph
WNW
Mostly Clear
Humidity
72%
Feels like
38°F
Dew Point
36°F
7:06 AM
8 AM
45°F
0%
12mph
WNW
Partly Cloudy
Humidity
66%
Feels like
39°F
Dew Point
35°F
9 AM
46°F
0%
13mph
WNW
Partly Cloudy
Humidity
61%
Feels like
40°F
Dew Point
33°F
10 AM
47°F
0%
15mph
NW
Partly Cloudy
Humidity
55%
Feels like
41°F
Dew Point
31°F
11 AM
47°F
0%
16mph
NW
Partly Cloudy
Humidity
49%
Feels like
41°F
Dew Point
29°F
12 PM
48°F
0%
16mph
NW
Partly Cloudy
Humidity
45%
Feels like
42°F
Dew Point
28°F
1 PM
48°F
0%
15mph
NW
Partly Cloudy
Humidity
44%
Feels like
42°F
Dew Point
27°F
2 PM
47°F
0%
14mph
NW
Mostly Sunny
Humidity
44%
Feels like
42°F
Dew Point
27°F
3 PM
47°F
0%
13mph
NW
Sunny
Humidity
45%
Feels like
41°F
Dew Point
27°F
4 PM
45°F
0%
10mph
NW
Sunny
Humidity
49%
Feels like
39°F
Dew Point
27°F
4:49 PM
5 PM
42°F
0%
8mph
NW
Clear
Humidity
55%
Feels like
37°F
Dew Point
27°F
6 PM
40°F
0%
7mph
WNW
Clear
Humidity
60%
Feels like
35°F
Dew Point
27°F
7 PM
38°F
0%
6mph
WNW
Clear
Humidity
64%
Feels like
34°F
Dew Point
27°F
8 PM
37°F
0%
6mph
WNW
Mostly Clear
Humidity
67%
Feels like
32°F
Dew Point
27°F
9 PM
36°F
0%
5mph
NW
Mostly Clear
Humidity
70%
Feels like
31°F
Dew Point
27°F
10 PM
35°F
0%
5mph
NW
Mostly Clear
Humidity
72%
Feels like
30°F
Dew Point
27°F
11 PM
34°F
0%
4mph
NW
Partly Cloudy
Humidity
73%
Feels like
30°F
Dew Point
26°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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Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide