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 30%
Wind Speed E 9 mph
Barometer 30.46 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 28 Mar 4:56 pm CDT
Extended Forecast for

4 Miles SW Ina IL

  • Tonight

    Tonight: Increasing clouds, with a low around 40. Southeast wind 3 to 6 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 64. South southwest wind 7 to 16 mph, with gusts as high as 25 mph.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. South wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 74. South southwest wind 14 to 18 mph, with gusts as high as 26 mph.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65. South southwest wind 16 to 18 mph, with gusts as high as 26 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 29 mph.

    High: 78 °F

    Breezy.
    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 49. South southwest wind 15 to 18 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%.

    Low: 49 °F

    Chance
    T-storms then
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 54. Northeast wind around 15 mph, with gusts as high as 21 mph.

    High: 54 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. East northeast wind around 15 mph, with gusts as high as 21 mph.

    Low: 46 °F

    Showers
    Likely

Detailed Forecast

Tonight
Increasing clouds, with a low around 40. Southeast wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 64. South southwest wind 7 to 16 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 56. South wind 11 to 14 mph, with gusts as high as 24 mph.
Monday
Mostly sunny, with a high near 74. South southwest wind 14 to 18 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 65. South southwest wind 16 to 18 mph, with gusts as high as 26 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 29 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 49. South southwest wind 15 to 18 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%.
Wednesday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 54. Northeast wind around 15 mph, with gusts as high as 21 mph.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. East northeast wind around 15 mph, with gusts as high as 21 mph.
Thursday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 58. East wind 11 to 15 mph, with gusts as high as 22 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 48. East northeast wind 8 to 10 mph.
Friday
A chance of showers. Mostly cloudy, with a high near 67. East northeast wind around 9 mph becoming south southeast in the afternoon.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. South wind 9 to 14 mph, with gusts as high as 20 mph.
Saturday
Showers likely. Mostly cloudy, with a high near 66. Southwest wind 15 to 17 mph, with gusts as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Ina IL
 38.11°N 88.95°W
Last Update:
4:32 pm CDT Mar 28, 2026
Forecast Valid:
5pm CDT Mar 28, 2026-6pm CDT Apr 4, 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