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Saint Charles County (O'Fallon)
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United States weather

10 day weather forecast for Saint Charles County

Monday, August 25th, 2025, at 03:39 PM
today
Overcast
24° 13°
tomorrow
Sunny
26° 10°
Wednesday
Partly cloudy
25° 12°
Thursday
Sunny
30° 15°
Friday
Sunny
29° 16°
Saturday
Sunny
26° 17°
Sunday
Sunny
29° 16°
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Saint Charles County Weather Pages

Saint Charles County weather forecast

The weather forecast for Saint Charles County over the next 3 days indicates comfortable conditions with temperatures ranging from 24 °F to 26 °F.

Wind speeds are expected to be breezy, averaging around 15 km/h.

On Thursday, a significant warming trend with temperatures reaching 30°C.

Weather today
Saint Charles County weather forecast

Saint Charles County 14 days weather forecast

This weeks weather in Saint Charles County. Click on a date for detailed forecasts
Mon. 25
24°
13°
Overcast
0 mm
Tue. 26
26°
10°
Sunny
0 mm
Wed. 27
25°
12°
Partly cloudy
0 mm
Thu. 28
30°
15°
Sunny
0 mm
Fri. 29
29°
16°
Sunny
0 mm
Sat. 30
26°
17°
Sunny
0 mm
Sun. 31
29°
16°
Sunny
0 mm
Mon. 1
26°
17°
Patchy rain possible
1.4 mm
Tue. 2
29°
18°
Patchy rain possible
0.5 mm
Wed. 3
30°
20°
Patchy rain possible
0.3 mm
Thu. 4
33°
19°
Patchy rain possible
4 mm
Fri. 5
27°
20°
Heavy rain
20.2 mm
Sat. 6
25°
21°
Moderate rain
12.6 mm
Sun. 7
28°
21°
Moderate rain
7.7 mm
Select a date

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Access Saint Charles County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Saint Charles County Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in Saint Charles County over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

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Location coordinates Where is Saint Charles County?

Get accurate weather forecasts for Saint Charles County, located at latitude 38.811 and longitude -90.7. Stay updated with localized weather information tailored for Saint Charles County.

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