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

56°F

13°C

Humidity 60%
Wind Speed E 3 mph
Barometer 30.02 in (1016.9 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 14 May 10:56 pm CDT
Extended Forecast for

5 Miles NE Bonnie IL

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Southeast wind 3 to 6 mph.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. East wind 8 to 15 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%.

    High: 81 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of thunderstorms before 7pm, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. South southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 86 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66. South wind around 8 mph.

    Low: 66 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 89. South wind 8 to 16 mph, with gusts as high as 22 mph.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 69. South wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 69 °F

    Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. South wind 13 to 18 mph, with gusts as high as 25 mph.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South wind around 15 mph, with gusts as high as 24 mph.

    Low: 73 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. Southeast wind 3 to 6 mph.
Friday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. East wind 8 to 15 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Friday Night
A slight chance of thunderstorms before 7pm, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. South southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66. South wind around 8 mph.
Sunday
Sunny, with a high near 89. South wind 8 to 16 mph, with gusts as high as 22 mph.
Sunday Night
Clear, with a low around 69. South wind 9 to 11 mph, with gusts as high as 21 mph.
Monday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. South wind 13 to 18 mph, with gusts as high as 25 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South wind around 15 mph, with gusts as high as 24 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88. Southwest wind 15 to 18 mph, with gusts as high as 24 mph.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. South southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. South southwest wind 6 to 8 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. East wind 3 to 6 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. East wind 6 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Bonnie IL
 38.24°N 88.83°W
Last Update:
9:01 pm CDT May 14, 2026
Forecast Valid:
11pm CDT May 14, 2026-6pm CDT May 21, 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