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 >

Hazardous Weather Conditions

Severe Thunderstorm Watch until June 11, 09:00 PM CDT

Current conditions at

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

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

Mostly Cloudy

87°F

31°C

Humidity	63%
Wind Speed	S 15 G 26 mph
Barometer	29.70 in (1005.2 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	94°F (34°C)
Last update	11 Jun 6:54 pm CDT

More Information:

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

Detailed forecast for

Calhoun County

Tonight

Showers with a chance of thunderstorms this evening, then partly cloudy after midnight. Some thunderstorms may be severe with damaging winds and large hail. Lows in the upper 50s. West winds 15 to 20 mph with gusts up to 30 mph, becoming northwest 5 to 10 mph after midnight. Chance of rain near 100 percent.

Friday

Sunny, cooler with highs in the lower 80s. West winds around 5 mph.

Friday Night

Clear in the evening, then becoming partly cloudy. Lows in the lower 60s. Southwest winds around 5 mph, becoming south after midnight.

Saturday

Partly sunny with a chance of showers and thunderstorms. Highs in the lower 80s. South winds 10 to 15 mph. Chance of rain 50 percent.

Saturday Night

A chance of thunderstorms. Showers. Lows in the lower 60s. South winds 5 to 10 mph, becoming west 10 to 15 mph after midnight. Chance of rain 90 percent.

Sunday And Sunday Night

Partly cloudy. Highs in the mid 70s. Lows in the upper 50s.

Monday

Sunny. Highs in the upper 70s.

Monday Night

Partly cloudy. Lows in the upper 50s.

Tuesday

Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent.

Tuesday Night

Partly cloudy with a 20 percent chance of showers. Lows in the lower 60s.

Wednesday

Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.

Wednesday Night

Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 60s. Chance of rain 70 percent.

Thursday

Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.