National Weather Service

News Headlines

Current conditions at

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

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

Fair

83°F

28°C

Humidity	70%
Wind Speed	NE 8 mph
Barometer	29.90 in (1011.8 mb)
Dewpoint	72°F (22°C)
Visibility	7.00 mi
Heat Index	88°F (31°C)
Last update	19 Jul 7:54 pm CDT

More Information:

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

Detailed forecast for

Calhoun County

Tonight

Partly cloudy. Patchy smoke. Lows in the upper 60s. East winds around 5 mph.

Monday

Patchy smoke in the morning. Sunny. Highs in the lower 90s. Southeast winds around 5 mph, becoming southwest in the afternoon. Heat index values up to 101.

Monday Night

Mostly clear. Humid with lows in the mid 70s. South winds around 5 mph. Heat index values up to 102 early in the evening.

Tuesday

Mostly sunny. Humid with highs in the lower 90s. West winds 10 to 15 mph. Heat index values up to 101.

Tuesday Night

Mostly clear. Lows in the upper 60s. North winds 5 to 10 mph.

Wednesday

Sunny, cooler with highs in the lower 80s.

Wednesday Night And Thursday

Partly cloudy. Lows around 60. Highs in the lower 80s.

Thursday Night

Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the lower 60s. Chance of rain 20 percent.

Friday

Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the lower 80s. Chance of rain 40 percent.

Friday Night

Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 30 percent.

Saturday

Mostly sunny. A slight chance of showers in the morning. Highs in the upper 80s. Chance of rain 20 percent.

Saturday Night

Mostly clear. Lows in the upper 60s.

Sunday

Mostly sunny. Highs in the lower 90s.