NimbocastSaint Charles, MO Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for Saint Charles, Saint Charles County, Missouri.
Updated Jul 29, 2026, 3:47 PM local time · Radar refreshes every 5 minutes
☀️
Saint Charles
88°F
Wind 8 mph
Humidity 41%
Cloud cover 0%
UV index 8
Alerts 0
Active alerts
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No active National Weather Service alerts for Saint Charles, MO.
Saint Charles weather radar
Light
Heavy
Next 24 hours
Now
☀️
87°F
4 PM
☀️
88°F
5 PM
☀️
88°F
6 PM
☀️
87°F
7 PM
☀️
85°F
8 PM
☀️
82°F
9 PM
☀️
78°F
10 PM
☀️
76°F
11 PM
☀️
74°F
12 AM
☀️
73°F
1 AM
☀️
71°F
2 AM
☀️
70°F
3 AM
☀️
69°F
4 AM
☀️
67°F
5 AM
☀️
67°F
6 AM
☀️
66°F
7 AM
☀️
67°F
8 AM
☁️
73°F
9 AM
☁️
77°F
10 AM
⛅
81°F
11 AM
☀️
84°F
12 PM
⛅
86°F
1 PM
☁️
88°F
2 PM
☁️
90°F
7-day forecast
Today
Jul 29
🌤️
88°F
70°F
1%
Thu
Jul 30
☁️
91°F
66°F
Fri
Jul 31
🌦️
87°F
71°F
71%
Sat
Aug 1
🌦️
72°F
66°F
71%
Sun
Aug 2
☁️
81°F
65°F
14%
Mon
Aug 3
☀️
82°F
60°F
13%
Tue
Aug 4
☁️
87°F
63°F
10%
Weather near Saint Charles
6 mi
Maryland Heights, MO6 mi
Hazelwood, MO8 mi
Saint Peters, MO9 mi
Florissant, MO9 mi
Creve Coeur, MO9 mi
Overland, MO10 mi
Chesterfield, MO10 mi
Ferguson, MO
Alerts are relayed from the National Weather Service and may lag
the official source. In a life-threatening situation always follow
weather.gov and local emergency
broadcasts.