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

Isolated Severe Thunderstorms and Critical Fire Weather Tuesday

Isolated severe thunderstorms with strong wind gusts and hail will be possible Tuesday from parts of central Plains northeastward into the Midwest. Additional storms capable of damaging winds will be possible across the eastern Florida peninsula. Elevated to critical fire weather including gusty winds and low relative humidity is forecast again Tuesday over much of the northern Great Plains. Read More >

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

N/A

Humidity NA
Wind Speed E 14 mph
Barometer 30.18 in
Dewpoint N/A
Visibility 10.00 mi
Last update 11 May 8:20 pm CDT
Extended Forecast for

Mc Nabb IL

  • Tonight

    Tonight: Mostly cloudy during the early evening, then becoming mostly clear, with a low around 45. Southeast wind around 10 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers before 4pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 79. Breezy, with a south wind 10 to 15 mph becoming southwest 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 30%.

    High: 79 °F

    Breezy.
    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 51. West wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 51 °F

    Chance
    T-storms then
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 68 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers. Partly sunny, with a high near 79.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then becoming mostly clear, with a low around 45. Southeast wind around 10 mph.
Tuesday
A slight chance of showers before 4pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 79. Breezy, with a south wind 10 to 15 mph becoming southwest 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 30%.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 51. West wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 68. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 71.
Thursday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 51.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 79.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mc Nabb IL
 41.17°N 89.21°W (Elev. 673 ft)
Last Update:
5:31 pm CDT May 11, 2026
Forecast Valid:
8pm CDT May 11, 2026-6pm CDT May 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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