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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.

Fair

79°F

26°C

Humidity 72%
Wind Speed S 10 mph
Barometer 29.90 in (1011.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 5 Jun 9:54 pm CDT
Extended Forecast for

Jerseyville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. Southwest wind around 9 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Southwest wind around 9 mph.

    High: 88 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms, mainly between 3am and 5am. Mostly cloudy, with a low around 68. Southwest wind 5 to 8 mph becoming calm after midnight.

    Low: 68 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 86. Southeast wind 5 to 11 mph. Chance of precipitation is 70%.

    High: 86 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 68. Southeast wind around 10 mph. Chance of precipitation is 80%.

    Low: 68 °F

    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 90%.

    High: 84 °F

    Showers then
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.

    Low: 69 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.

    Low: 71 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 68. Southwest wind around 9 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Southwest wind around 9 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms, mainly between 3am and 5am. Mostly cloudy, with a low around 68. Southwest wind 5 to 8 mph becoming calm after midnight.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 86. Southeast wind 5 to 11 mph. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Low around 68. Southeast wind around 10 mph. Chance of precipitation is 80%.
Monday
Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 90%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 95.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 73.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Jerseyville IL
 39.11°N 90.32°W (Elev. 630 ft)
Last Update:
10:16 pm CDT Jun 5, 2026
Forecast Valid:
10pm CDT Jun 5, 2026-6pm CDT Jun 12, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation