National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

44°F

7°C

Humidity 43%
Wind Speed SW 16 mph
Barometer 30.33 in (1028.0 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 12 Jan 10:56 am CST
Extended Forecast for

Bonnie IL

  • Today

    Today: Sunny, with a high near 50. Southwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 34. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59. Southwest wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 40. Southwest wind around 6 mph becoming northwest after midnight.

    Low: 40 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 44. North northwest wind 7 to 17 mph, with gusts as high as 25 mph.

    High: 44 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 18. North northwest wind 9 to 17 mph, with gusts as high as 25 mph.

    Low: 18 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 32. North northwest wind 5 to 9 mph becoming west southwest in the afternoon.

    High: 32 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23. Light southwest wind becoming south southwest 5 to 10 mph in the evening. Winds could gust as high as 20 mph.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 43. West wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 43 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 50. Southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 34. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 59. Southwest wind 9 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 40. Southwest wind around 6 mph becoming northwest after midnight.
Wednesday
Mostly cloudy, with a high near 44. North northwest wind 7 to 17 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 18. North northwest wind 9 to 17 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 32. North northwest wind 5 to 9 mph becoming west southwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 23. Light southwest wind becoming south southwest 5 to 10 mph in the evening. Winds could gust as high as 20 mph.
Friday
Partly sunny, with a high near 43. West wind 9 to 15 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, with a low around 21. West wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday
Partly sunny, with a high near 33. West wind 10 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 12. West northwest wind around 10 mph.
Sunday
Mostly sunny, with a high near 29. West wind 8 to 13 mph, with gusts as high as 18 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bonnie IL
 38.2°N 88.92°W
Last Update:
10:57 am CST Jan 12, 2026
Forecast Valid:
11am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation