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

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Overcast

19°F

-7°C

Humidity 63%
Wind Speed NW 15 mph
Barometer 30.45 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 22 Feb 9:35 pm CST
Extended Forecast for

Lostant IL

  • Tonight

    Tonight: A chance of flurries before 1am. Mostly cloudy, with a low around 14. Wind chill values as low as zero. Northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 14 °F

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 30. Wind chill values as low as -1. North northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 30 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 15 mph.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 44. Breezy, with a south wind 10 to 15 mph increasing to 20 to 25 mph in the morning. Winds could gust as high as 35 mph.

    High: 44 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25. West northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 25 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after midnight. Mostly cloudy, with a low around 26. Chance of precipitation is 70%.

    Low: 26 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Thursday

    Thursday: A chance of snow before noon. Partly sunny, with a high near 38.

    High: 38 °F

    Chance Snow
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of flurries before 1am. Mostly cloudy, with a low around 14. Wind chill values as low as zero. Northwest wind around 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 30. Wind chill values as low as -1. North northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 18. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 15 mph.
Tuesday
Mostly cloudy, with a high near 44. Breezy, with a south wind 10 to 15 mph increasing to 20 to 25 mph in the morning. Winds could gust as high as 35 mph.
Tuesday Night
Partly cloudy, with a low around 25. West northwest wind around 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Rain and snow likely, becoming all snow after midnight. Mostly cloudy, with a low around 26. Chance of precipitation is 70%.
Thursday
A chance of snow before noon. Partly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 33.
Saturday
Partly sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Partly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lostant IL
 41.12°N 89.07°W
Last Update:
9:11 pm CST Feb 22, 2026
Forecast Valid:
9pm CST Feb 22, 2026-6pm CST Mar 1, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation