NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93° N Lon: 90.43° W Elev: 436 ft.

Fair

80°F

27°C

Humidity	74%
Wind Speed	SW 10 G 21 mph
Barometer	29.88 in (1011.0 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	10 Jun 7:54 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Calhoun County

Today

Mostly sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

Tonight

Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the lower 70s. Southwest winds 10 to 15 mph. Chance of rain 40 percent.

Thursday

Sunny with highs in the lower 90s. South winds 15 to 20 mph with gusts up to 30 mph. Heat index values up to 103.

Thursday Night

Showers with a chance of thunderstorms in the evening, then partly cloudy after midnight. Cooler with lows in the lower 60s. West winds 15 to 20 mph with gusts up to 30 mph, becoming northwest 5 to 10 mph after midnight. Chance of rain 90 percent.

Friday

Sunny, cooler with highs in the lower 80s. Northwest winds 5 to 10 mph.

Friday Night

Mostly clear. Lows in the lower 60s.

Saturday

Mostly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the mid 80s. Chance of rain 40 percent.

Saturday Night

Showers likely with a chance of thunderstorms. Lows in the mid 60s. Chance of rain 70 percent.

Sunday

Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 40 percent.

Sunday Night

Mostly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 50s. Chance of rain 40 percent.

Monday

Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 20 percent.

Monday Night And Tuesday

Partly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Chance of rain 20 percent.