Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

52°F

11°C

Humidity 86%
Wind Speed E 9 mph
Barometer 30.17 in (1021.7 mb)
Dewpoint 48°F (9°C)
Visibility 7.00 mi
Wind Chill49°F (9°C)
Last update 24 Dec 10:54 am CST
Extended Forecast for

3 Miles WSW Jerseyville IL

  • Today

    Today: Mostly cloudy, with a high near 62. Southeast wind 7 to 10 mph.

    High: 62 °F

    Mostly Cloudy

  • Tonight

    Tonight: Widespread dense fog, mainly after 5am.  Otherwise, mostly cloudy, with a low around 50. Southeast wind 5 to 7 mph becoming light and variable  after midnight.

    Low: 50 °F

    Dense Fog

  • Christmas Day

    Christmas Day: Widespread dense fog, mainly before 7am.  Otherwise, mostly cloudy, with a high near 60. Light and variable wind becoming east around 6 mph in the morning.

    High: 60 °F

    Dense Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54. East wind 7 to 9 mph becoming south after midnight.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 67. South wind 6 to 11 mph becoming northwest in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain before noon, then a slight chance of rain and snow.  Mostly cloudy, with a high near 48. Breezy.  Chance of precipitation is 20%.

    High: 48 °F

    Breezy.
    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 62. Southeast wind 7 to 10 mph.
Tonight
Widespread dense fog, mainly after 5am. Otherwise, mostly cloudy, with a low around 50. Southeast wind 5 to 7 mph becoming light and variable after midnight.
Christmas Day
Widespread dense fog, mainly before 7am. Otherwise, mostly cloudy, with a high near 60. Light and variable wind becoming east around 6 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 54. East wind 7 to 9 mph becoming south after midnight.
Friday
Mostly sunny, with a high near 67. South wind 6 to 11 mph becoming northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Partly sunny, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
A slight chance of rain before noon, then a slight chance of rain and snow. Mostly cloudy, with a high near 48. Breezy. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 16.
Monday
Mostly sunny, with a high near 26.
Monday Night
Mostly clear, with a low around 15.
Tuesday
Partly sunny, with a high near 33.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Jerseyville IL
 39.11°N 90.38°W (Elev. 600 ft)
11:01 am CST Dec 24, 2025
11am CST Dec 24, 2025-6pm CST Dec 30, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database