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.

Fair

77°F

25°C

Humidity	62%
Wind Speed	S 9 mph
Barometer	29.80 in (1008.7 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	15 May 9:54 pm CDT

More Information:

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

Extended Forecast for

5 Miles W Dow IL

Tonight
Low: 66 °F
Mostly Cloudy
then Chance
Showers
Saturday
High: 82 °F
Showers then
Chance
T-storms
Saturday Night
Low: 64 °F
Slight Chance
T-storms then
Partly Cloudy
Sunday
High: 88 °F
Sunny
Sunday Night
Low: 69 °F
Mostly Clear
Monday
High: 89 °F
Slight Chance
T-storms then
Chance
T-storms
Monday Night
Low: 69 °F
Chance
T-storms
Tuesday
High: 80 °F
Chance
T-storms then
Showers
Likely
Tuesday Night
Low: 57 °F
Showers
Likely

Detailed Forecast

Tonight

A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 66. South wind around 9 mph.

Saturday

Showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. High near 82. South wind 7 to 9 mph. Chance of precipitation is 80%.

Saturday Night

A 20 percent chance of showers and thunderstorms, mainly between 8pm and 9pm. Partly cloudy, with a low around 64. Southeast wind 7 to 9 mph.

Sunday

Sunny, with a high near 88. South wind 10 to 16 mph, with gusts as high as 29 mph.

Sunday Night

Mostly clear, with a low around 69. South wind around 15 mph, with gusts as high as 25 mph.

Monday

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89.

Monday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.

Tuesday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 70%.

Tuesday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.

Wednesday

A 20 percent chance of showers after 1pm. Partly sunny, with a high near 70.

Wednesday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 52.

Thursday

Mostly sunny, with a high near 73.

Thursday Night

A 20 percent chance of showers. Partly cloudy, with a low around 54.

Friday

A 20 percent chance of showers. Mostly sunny, with a high near 78.