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

17°F

-8°C

Humidity 63%
Wind Speed N 13 mph
Barometer 30.25 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 7 Dec 4:15 pm CST
Extended Forecast for

West Brooklyn IL

  • Tonight

    Tonight: Increasing clouds, with a temperature falling to near 1 by 9pm, then rising to around 9 during the remainder of the night. Wind chill values as low as -12. North wind 5 to 10 mph becoming light east northeast after midnight.

    Low: 1 °F⇑

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 21. Light and variable wind becoming south southeast 5 to 10 mph in the morning.

    High: 21 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a temperature falling to near 16 by 8pm, then rising to around 26 during the remainder of the night. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 16 °F⇑

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 35. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 35 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely, possibly mixed with snow before 9pm, then rain likely between 9pm and 3am, then a chance of rain and snow after 3am. Cloudy, with a low around 32. Breezy, with a south wind 15 to 25 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.

    Low: 32 °F

    Breezy.
    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 20 percent chance of snow. Mostly cloudy, with a high near 34. Breezy.

    High: 34 °F

    Slight Chance
    Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A chance of snow. Partly sunny, with a high near 22.

    High: 22 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow before midnight. Mostly cloudy, with a low around 4.

    Low: 4 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a temperature falling to near 1 by 9pm, then rising to around 9 during the remainder of the night. Wind chill values as low as -12. North wind 5 to 10 mph becoming light east northeast after midnight.
Monday
Partly sunny, with a high near 21. Light and variable wind becoming south southeast 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a temperature falling to near 16 by 8pm, then rising to around 26 during the remainder of the night. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly cloudy, with a high near 35. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Rain likely, possibly mixed with snow before 9pm, then rain likely between 9pm and 3am, then a chance of rain and snow after 3am. Cloudy, with a low around 32. Breezy, with a south wind 15 to 25 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 34. Breezy.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 15.
Thursday
A chance of snow. Partly sunny, with a high near 22.
Thursday Night
A chance of snow before midnight. Mostly cloudy, with a low around 4.
Friday
Partly sunny, with a high near 13.
Friday Night
Mostly cloudy, with a low around -3.
Saturday
Partly sunny and cold, with a high near 6.
Saturday Night
Mostly cloudy, with a low around -4.
Sunday
Mostly sunny, with a high near 12.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
West Brooklyn IL
 41.69°N 89.15°W
Last Update:
3:11 pm CST Dec 7, 2025
Forecast Valid:
4pm CST Dec 7, 2025-6pm CST Dec 14, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation