Hourly Weather Forecast - Saint Charles, MO

12 AM
29°F
0%
5mph
NNW
Mostly Clear
Humidity
74%
Feels like
24°F
Dew Point
22°F
1 AM
28°F
0%
5mph
NNW
Mostly Clear
Humidity
73%
Feels like
22°F
Dew Point
21°F
2 AM
27°F
0%
5mph
NNW
Mostly Clear
Humidity
72%
Feels like
21°F
Dew Point
19°F
3 AM
26°F
0%
5mph
N
Partly Cloudy
Humidity
72%
Feels like
20°F
Dew Point
18°F
4 AM
25°F
0%
4mph
N
Partly Cloudy
Humidity
71%
Feels like
20°F
Dew Point
17°F
5 AM
24°F
0%
4mph
N
Partly Cloudy
Humidity
70%
Feels like
19°F
Dew Point
16°F
6 AM
24°F
0%
3mph
NNE
Mostly Cloudy
Humidity
70%
Feels like
20°F
Dew Point
15°F
7 AM
24°F
0%
3mph
NNE
Cloudy
Humidity
69%
Feels like
20°F
Dew Point
16°F
7:11 AM
8 AM
26°F
0%
3mph
NE
Cloudy
Humidity
67%
Feels like
22°F
Dew Point
17°F
9 AM
28°F
0%
3mph
NE
Cloudy
Humidity
63%
Feels like
24°F
Dew Point
17°F
10 AM
29°F
0%
3mph
NE
Partly Cloudy
Humidity
60%
Feels like
25°F
Dew Point
17°F
11 AM
30°F
10%
3mph
NNE
Partly Cloudy
Humidity
58%
Feels like
26°F
Dew Point
17°F
12 PM
31°F
10%
4mph
NNE
Partly Cloudy
Humidity
57%
Feels like
27°F
Dew Point
17°F
1 PM
31°F
10%
4mph
NNE
Partly Cloudy
Humidity
56%
Feels like
28°F
Dew Point
17°F
2 PM
31°F
10%
4mph
NNE
Partly Cloudy
Humidity
56%
Feels like
27°F
Dew Point
17°F
3 PM
31°F
10%
4mph
NNE
Partly Cloudy
Humidity
58%
Feels like
27°F
Dew Point
18°F
4 PM
30°F
10%
4mph
NNE
Mostly Sunny
Humidity
61%
Feels like
25°F
Dew Point
18°F
4:40 PM
5 PM
30°F
10%
5mph
NNE
Partly Cloudy
Humidity
61%
Feels like
25°F
Dew Point
18°F
6 PM
29°F
10%
5mph
NNE
Cloudy
Humidity
62%
Feels like
24°F
Dew Point
18°F
7 PM
28°F
10%
5mph
N
Cloudy
Humidity
63%
Feels like
22°F
Dew Point
17°F
8 PM
26°F
10%
5mph
N
Cloudy
Humidity
65%
Feels like
20°F
Dew Point
16°F
9 PM
25°F
10%
5mph
N
Cloudy
Humidity
66%
Feels like
18°F
Dew Point
15°F
10 PM
23°F
10%
6mph
N
Cloudy
Humidity
66%
Feels like
16°F
Dew Point
13°F
11 PM
22°F
10%
6mph
N
Cloudy
Humidity
65%
Feels like
14°F
Dew Point
12°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, Flooding Rain Impacts the Northwest

Today's Weather Outlook

Today'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