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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 >

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

A Few Clouds

86°F

30°C

Humidity 49%
Wind Speed S 16 G 21 mph
Barometer 29.92 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 17 May 3:56 pm CDT
Extended Forecast for

Du Bois IL

  • Tonight

    Tonight: Increasing clouds, with a low around 70. South wind 11 to 17 mph, with gusts as high as 24 mph.

    Low: 70 °F

    Increasing
    Clouds

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 86. Breezy, with a south wind 14 to 21 mph.

    High: 86 °F

    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms, mainly between 10pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 70. South wind 13 to 15 mph, with gusts as high as 24 mph.

    Low: 70 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly after 1pm. High near 86. Breezy, with a southwest wind 14 to 20 mph. Chance of precipitation is 90%.

    High: 86 °F

    Chance
    T-storms then
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms. Low around 59. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 80%.

    Low: 59 °F

    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 71.

    High: 71 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
Increasing clouds, with a low around 70. South wind 11 to 17 mph, with gusts as high as 24 mph.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 86. Breezy, with a south wind 14 to 21 mph.
Monday Night
A 20 percent chance of showers and thunderstorms, mainly between 10pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 70. South wind 13 to 15 mph, with gusts as high as 24 mph.
Tuesday
Showers and thunderstorms, mainly after 1pm. High near 86. Breezy, with a southwest wind 14 to 20 mph. Chance of precipitation is 90%.
Tuesday Night
Showers and thunderstorms. Low around 59. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 80%.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 71.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 73.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 56.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Du Bois IL
 38.21°N 89.2°W (Elev. 499 ft)
Last Update:
4:06 pm CDT May 17, 2026
Forecast Valid:
4pm CDT May 17, 2026-6pm CDT May 24, 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