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

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

3°F

-16°C

Humidity 55%
Wind Speed W 15 G 23 mph
Barometer 30.24 in
Dewpoint -9°F (-23°C)
Visibility 10.00 mi
Wind Chill-16°F (-27°C)
Last update 19 Jan 3:45 pm CST
Extended Forecast for

4 Miles SE Shirland IL

  • M.L.King Day

    M.L.King Day: Patchy blowing snow. Partly sunny and cold, with a high near 5. Wind chill values as low as -15. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 5 °F

    Patchy
    Blowing Snow
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around -2. Wind chill values as low as -13. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: -2 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Increasing clouds, with a high near 18. Wind chill values as low as -13. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 18 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow, mainly after midnight. Low around 12. South southeast wind around 5 mph becoming west southwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 12 °F

    Chance Snow
    then Snow

  • Wednesday

    Wednesday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 25. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 25 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow before midnight. Mostly cloudy, with a low around 7.

    Low: 7 °F

    Chance Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 16.

    High: 16 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -11.

    Low: -11 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near -4.

    High: -4 °F

    Cold

Detailed Forecast

M.L.King Day
Patchy blowing snow. Partly sunny and cold, with a high near 5. Wind chill values as low as -15. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around -2. Wind chill values as low as -13. West wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Increasing clouds, with a high near 18. Wind chill values as low as -13. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Snow, mainly after midnight. Low around 12. South southeast wind around 5 mph becoming west southwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 25. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A 50 percent chance of snow before midnight. Mostly cloudy, with a low around 7.
Thursday
Mostly sunny, with a high near 16.
Thursday Night
Partly cloudy, with a low around -11.
Friday
Partly sunny and cold, with a high near -4.
Friday Night
Mostly cloudy, with a low around -16.
Saturday
Mostly sunny and cold, with a high near 0.
Saturday Night
Mostly cloudy, with a low around -12.
Sunday
Mostly sunny and cold, with a high near 8.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Shirland IL
 42.41°N 89.14°W
Last Update:
3:11 pm CST Jan 19, 2026
Forecast Valid:
3pm CST Jan 19, 2026-6pm CST Jan 25, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation