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

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Light Rain

50°F

10°C

Humidity 62%
Wind Speed NW 12 G 17 mph
Barometer 29.82 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 5 May 6:19 am CDT
Extended Forecast for

Lostant IL

  • Today

    Today: Showers likely before 11am, then a chance of showers after 1pm. Cloudy, with a high near 60. Northwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Showers
    Likely then
    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 43. North wind around 5 mph.

    Low: 43 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 58. Northwest wind 5 to 15 mph.

    High: 58 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 62. West wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.

    High: 67 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 1am. Partly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

Today
Showers likely before 11am, then a chance of showers after 1pm. Cloudy, with a high near 60. Northwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 30 percent chance of showers, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 43. North wind around 5 mph.
Wednesday
Partly sunny, with a high near 58. Northwest wind 5 to 15 mph.
Wednesday Night
Partly cloudy, with a low around 38. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Mostly sunny, with a high near 62. West wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 47.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Friday Night
A chance of showers before 1am. Partly cloudy, with a low around 47.
Saturday
Sunny, with a high near 74.
Saturday Night
A chance of showers after 1am. Mostly cloudy, with a low around 53.
Sunday
A chance of showers. Mostly cloudy, with a high near 68.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 67.
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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:
2:46 am CDT May 5, 2026
Forecast Valid:
6am CDT May 5, 2026-6pm CDT May 11, 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