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

38°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 29.82 in (1010.2 mb)
Dewpoint 38°F (3°C)
Visibility 9.00 mi
Last update 8 Nov 1:56 am CST
Extended Forecast for

Du Bois IL

  • Overnight

    Overnight: Clear early, then becoming mostly cloudy, with a low around 42. Light northwest wind.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after 5pm. Mostly cloudy, with a high near 67. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 67 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain before 3am, then a chance of sprinkles and flurries between 3am and 4am, then a chance of flurries after 4am. Mostly cloudy, with a low around 37. Breezy, with a south wind 6 to 11 mph becoming northwest 15 to 20 mph in the evening. Winds could gust as high as 31 mph. Chance of precipitation is 40%.

    Low: 37 °F

    Chance Rain
    then Chance
    Sprinkles/Flurries
    and Breezy

  • Sunday

    Sunday: A chance of sprinkles and flurries before 11am, then a chance of sprinkles between 11am and noon. Mostly cloudy, then gradually becoming sunny, with a high near 42. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 29 mph.

    High: 42 °F

    Breezy.
    Chance
    Sprinkles/Flurries
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A chance of flurries before midnight. Mostly clear, with a low around 24. Northwest wind 10 to 16 mph, with gusts as high as 23 mph.

    Low: 24 °F

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 53. Breezy.

    High: 53 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear early, then becoming mostly cloudy, with a low around 42. Light northwest wind.
Saturday
A 20 percent chance of rain after 5pm. Mostly cloudy, with a high near 67. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
A chance of rain before 3am, then a chance of sprinkles and flurries between 3am and 4am, then a chance of flurries after 4am. Mostly cloudy, with a low around 37. Breezy, with a south wind 6 to 11 mph becoming northwest 15 to 20 mph in the evening. Winds could gust as high as 31 mph. Chance of precipitation is 40%.
Sunday
A chance of sprinkles and flurries before 11am, then a chance of sprinkles between 11am and noon. Mostly cloudy, then gradually becoming sunny, with a high near 42. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 29 mph.
Sunday Night
A chance of flurries before midnight. Mostly clear, with a low around 24. Northwest wind 10 to 16 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 25.
Veterans Day
Mostly sunny, with a high near 53. Breezy.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Du Bois IL
 38.21°N 89.2°W (Elev. 499 ft)
Last Update:
1:56 am CST Nov 8, 2025
Forecast Valid:
2am CST Nov 8, 2025-6pm CST Nov 14, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation