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°NLon: 90.43°WElev: 436ft.

Overcast

69°F

21°C

Humidity	66%
Wind Speed	NW 13 G 23 mph
Barometer	29.96 in (1014.2 mb)
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Last update	14 Jun 9:54 am CDT

More Information:

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

Extended Forecast for

3 Miles WNW Grafton IL

Today
High: 75 °F
Isolated
Showers then
Mostly Sunny
Tonight
Low: 55 °F
Mostly Clear
Monday
High: 76 °F
Sunny
Monday Night
Low: 59 °F
Mostly Clear
Tuesday
High: 80 °F
Mostly Sunny
then Chance
T-storms
Tuesday Night
Low: 60 °F
Slight Chance
T-storms then
Slight Chance
Showers
Wednesday
High: 86 °F
Chance
Showers then
Chance
T-storms
Wednesday Night
Low: 68 °F
T-storms and
Breezy
Thursday
High: 79 °F
Chance
T-storms

Detailed Forecast

Today

Isolated showers before 11am. Cloudy early, then clearing, with a high near 75. Northwest wind 11 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

Tonight

Mostly clear, with a low around 55. Northwest wind 5 to 10 mph becoming light after midnight.

Monday

Sunny, with a high near 76. Calm wind becoming northwest around 5 mph in the afternoon.

Monday Night

Mostly clear, with a low around 59. Southwest wind 3 to 6 mph.

Tuesday

A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Southwest wind 8 to 11 mph, with gusts as high as 23 mph.

Tuesday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 60. Chance of precipitation is 20%.

Wednesday

A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 86. Chance of precipitation is 40%.

Wednesday Night

Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 68. Breezy. Chance of precipitation is 90%.

Thursday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.

Thursday Night

A 20 percent chance of showers before 1am. Partly cloudy, with a low around 60.

Juneteenth

Mostly sunny, with a high near 81.

Friday Night

Mostly clear, with a low around 63.

Saturday

Mostly sunny, with a high near 84.