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

Hazardous Weather Outlook

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Partly Cloudy

58°F

14°C

Humidity	81%
Wind Speed	N 7 mph
Barometer	30.16 in (1020.9 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	20 May 1:54 am CDT

More Information:

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

Extended Forecast for

4 Miles SE Silex MO

Overnight
Low: 52 °F
Chance
Showers
Wednesday
High: 68 °F
Mostly Cloudy
Wednesday Night
Low: 50 °F
Mostly Cloudy
Thursday
High: 70 °F
Mostly Cloudy
Thursday Night
Low: 55 °F
Mostly Cloudy
then Chance
Showers
Friday
High: 69 °F
Showers
Friday Night
Low: 56 °F
Slight Chance
T-storms then
Slight Chance
Showers
Saturday
High: 79 °F
Mostly Cloudy
then Slight
Chance
T-storms
Saturday Night
Low: 59 °F
Chance
T-storms

Detailed Forecast

Overnight

A 30 percent chance of showers, mainly before 4am. Cloudy, with a low around 52. North wind around 7 mph.

Wednesday

Mostly cloudy, with a high near 68. Northeast wind around 7 mph.

Wednesday Night

Mostly cloudy, with a low around 50. Northeast wind around 5 mph becoming calm.

Thursday

Mostly cloudy, with a high near 70. East wind 5 to 7 mph.

Thursday Night

A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 55. East wind around 6 mph.

Friday

Showers and possibly a thunderstorm. High near 69. Chance of precipitation is 80%.

Friday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 56. Chance of precipitation is 20%.

Saturday

A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79.

Saturday Night

A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 59.

Sunday

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.

Sunday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 59.

Memorial Day

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.

Monday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 61.