Hourly Weather Forecast - Saint Charles, MO

12 AM
58°F
0%
6mph
S
Clear
Humidity
57%
Feels like
58°F
Dew Point
43°F
1 AM
58°F
0%
6mph
S
Clear
Humidity
59%
Feels like
58°F
Dew Point
43°F
2 AM
57°F
0%
6mph
S
Clear
Humidity
61%
Feels like
57°F
Dew Point
44°F
3 AM
57°F
0%
6mph
S
Clear
Humidity
63%
Feels like
57°F
Dew Point
44°F
4 AM
56°F
0%
6mph
S
Clear
Humidity
65%
Feels like
56°F
Dew Point
45°F
5 AM
56°F
0%
6mph
S
Clear
Humidity
68%
Feels like
56°F
Dew Point
46°F
6 AM
56°F
0%
5mph
S
Mostly Clear
Humidity
69%
Feels like
56°F
Dew Point
47°F
6:56 AM
7 AM
58°F
0%
5mph
S
Mostly Sunny
Humidity
68%
Feels like
58°F
Dew Point
48°F
8 AM
62°F
0%
6mph
SSW
Partly Cloudy
Humidity
66%
Feels like
62°F
Dew Point
50°F
9 AM
67°F
0%
7mph
SSW
Mostly Cloudy
Humidity
59%
Feels like
67°F
Dew Point
52°F
10 AM
71°F
0%
8mph
SW
Cloudy
Humidity
53%
Feels like
71°F
Dew Point
53°F
11 AM
75°F
0%
9mph
SW
Cloudy
Humidity
47%
Feels like
75°F
Dew Point
53°F
12 PM
78°F
0%
9mph
SW
Mostly Cloudy
Humidity
43%
Feels like
78°F
Dew Point
54°F

Today's High Temperature Outlook

Dangerous Heat Continues Across the Southwest

Dozens of record high temperatures will be challenged or shattered across the Southwest today.

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

(Image provided by Pixabay.com)

Lightning Safety

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

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