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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Lostant IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 62. Southwest wind 5 to 10 mph.

    High: 62 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. South southwest wind around 5 mph becoming west northwest after midnight. Winds could gust as high as 15 mph.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63. Calm wind.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: A slight chance of rain before noon, then a chance of rain and thunderstorms between noon and 3pm, then a chance of rain after 3pm. Mostly cloudy, with a high near 57. Light and variable wind becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 50%.

    High: 57 °F

    Slight Chance
    Rain then
    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 45.

    High: 45 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 62. Southwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 44. South southwest wind around 5 mph becoming west northwest after midnight. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 63. Calm wind.
Tuesday Night
Partly cloudy, with a low around 40. Calm wind.
Veterans Day
A slight chance of rain before noon, then a chance of rain and thunderstorms between noon and 3pm, then a chance of rain after 3pm. Mostly cloudy, with a high near 57. Light and variable wind becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 50%.
Wednesday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 37.
Thursday
A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 45.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Mostly sunny, with a high near 43.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lostant IL
 41.12°N 89.07°W
Last Update:
12:40 pm CST Nov 9, 2026
Forecast Valid:
2pm CST Nov 9, 2026-6pm CST Nov 15, 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