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.

Fair

32°F

0°C

Humidity 39%
Wind Speed W 10 mph
Barometer 30.42 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 23 Feb 3:35 pm CST
Extended Forecast for

McNabb IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 30. Northwest wind 5 to 10 mph.

    High: 30 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 18. Light and variable wind becoming south 5 to 10 mph after midnight.

    Low: 18 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy, with a high near 45. Breezy, with a south wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 45 °F

    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 24 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 50%. New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 30. Northwest wind 5 to 10 mph.
Tonight
Increasing clouds, with a low around 18. Light and variable wind becoming south 5 to 10 mph after midnight.
Tuesday
Cloudy, with a high near 45. Breezy, with a south wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 38.
Wednesday Night
A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 50%. New snow accumulation of 1 to 2 inches possible.
Thursday
Mostly sunny, with a high near 42.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 58.
Friday Night
Mostly clear, with a low around 32.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
McNabb IL
 41.17°N 89.21°W (Elev. 673 ft)
Last Update:
3:16 pm CST Feb 23, 2026
Forecast Valid:
3pm CST Feb 23, 2026-6pm CST Mar 1, 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