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.

Fair

72°F

22°C

Humidity 70%
Wind Speed S 5 mph
Barometer 29.84 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 22 Sep 7:55 pm CDT
Extended Forecast for

Lostant IL

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after midnight. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 62. South southwest wind around 5 mph. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 81. Southwest wind around 5 mph. Chance of precipitation is 40%.

    High: 81 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northeast wind 5 to 10 mph. Chance of precipitation is 50%.

    Low: 61 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers. Partly sunny, with a high near 73. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 73 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Partly cloudy, with a low around 57. North northeast wind 5 to 10 mph.

    Low: 57 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers. Mostly sunny, with a high near 74.

    High: 74 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

Detailed Forecast

Tonight
A slight chance of showers, then a chance of showers and thunderstorms after midnight. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 62. South southwest wind around 5 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 81. Southwest wind around 5 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northeast wind 5 to 10 mph. Chance of precipitation is 50%.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 73. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57. North northeast wind 5 to 10 mph.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 79.
Friday Night
Clear, with a low around 56.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 56.
Monday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lostant IL
 41.14°N 89.07°W
Last Update:
7:56 pm CDT Sep 22, 2025
Forecast Valid:
8pm CDT Sep 22, 2025-6pm CDT Sep 29, 2025
 
Forecast Discussion
 
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Additional Resources

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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