


Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
86°F
30°C
Humidity | 67% |
Wind Speed | SW 5 mph |
Barometer | 30.08 in (1018.0 mb) |
Dewpoint | 74°F (23°C) |
Visibility | 10.00 mi |
Heat Index | 94°F (34°C) |
Last update | 16 Aug 9:54 am CDT |
Extended Forecast for
2 Miles N Old Monroe MO
Heat Advisory August 16, 10:22am until August 18, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
Today
High: 98 °F
Sunny then
Isolated
T-stormsTonight
Low: 75 °F
Mostly Clear
Sunday
High: 97 °F
Hot
Sunday Night
Low: 76 °F
Mostly Clear
Monday
High: 98 °F
Hot
Monday Night
Low: 75 °F
Mostly Clear
Tuesday
High: 95 °F
Sunny then
Slight Chance
T-stormsTuesday Night
Low: 72 °F
Chance
T-storms
Detailed Forecast
Today
Isolated showers and thunderstorms after 4pm. Sunny and hot, with a high near 98. Heat index values as high as 107. Southwest wind around 6 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 75. Calm wind.
Sunday
Sunny and hot, with a high near 97. Heat index values as high as 109. Light southwest wind.
Sunday Night
Mostly clear, with a low around 76. Light southeast wind.
Monday
Sunny and hot, with a high near 98. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 75.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72.
Wednesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 87.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles N Old Monroe MO
38.97°N 90.73°W (Elev. 433 ft)
38.97°N 90.73°W (Elev. 433 ft)
8:26 am CDT Aug 16, 2025
10am CDT Aug 16, 2025-6pm CDT Aug 22, 2025