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

50°F

10°C

Humidity 40%
Wind Speed W 12 G 18 mph
Barometer 30.19 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 19 Apr 6:58 pm CDT
Extended Forecast for

Mc Nabb IL

Freeze Warning April 20, 12:00am until April 20, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: Widespread frost after 3am. Otherwise, clear, with a low around 31. Northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 20 mph.

    Low: 31 °F

    Clear then
    Frost

  • Monday

    Monday: Widespread frost before 9am. Otherwise, sunny, with a high near 58. Calm wind becoming south around 5 mph in the afternoon.

    High: 58 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Breezy.

    High: 82 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 60. Breezy. Chance of precipitation is 80%.

    Low: 60 °F

    Breezy.
    Chance
    T-storms then
    Showers

Detailed Forecast

Tonight
Widespread frost after 3am. Otherwise, clear, with a low around 31. Northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 20 mph.
Monday
Widespread frost before 9am. Otherwise, sunny, with a high near 58. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 47. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 77. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 82. Breezy.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 60. Breezy. Chance of precipitation is 80%.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 72.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mc Nabb IL
 41.17°N 89.21°W (Elev. 673 ft)
Last Update:
6:26 pm CDT Apr 19, 2026
Forecast Valid:
7pm CDT Apr 19, 2026-6pm CDT Apr 26, 2026
 
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