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

16°F

-9°C

Humidity 57%
Wind Speed N 14 mph
Barometer 30.25 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill2°F (-17°C)
Last update 7 Dec 3:45 pm CST
Extended Forecast for

5 Miles NNW Shirland IL

  • Tonight

    Tonight: Increasing clouds, with a low around 1. Wind chill values between -5 and -10. North wind around 5 mph becoming calm after midnight.

    Low: 1 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 22. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 22 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of snow, mainly before midnight. 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.

    Low: 16 °F⇑

    Chance Snow

  • Tuesday

    Tuesday: A slight chance of rain and snow after noon. Cloudy, with a high near 35. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.

    High: 35 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain and snow before 9pm, then rain between 9pm and 3am, then rain and snow likely after 3am. Low around 30. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain/Snow and
    Breezy

  • Wednesday

    Wednesday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 31. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 31 °F

    Slight Chance
    Snow and
    Breezy then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 8. Northwest wind 5 to 10 mph.

    Low: 8 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow. Partly sunny, with a high near 21. Northwest wind 5 to 10 mph.

    High: 21 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 3.

    Low: 3 °F

    Chance Snow

Detailed Forecast

Tonight
Increasing clouds, with a low around 1. Wind chill values between -5 and -10. North wind around 5 mph becoming calm after midnight.
Monday
Mostly cloudy, with a high near 22. Light and variable wind becoming south 5 to 10 mph in the morning.
Monday Night
A 30 percent chance of snow, mainly before midnight. 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.
Tuesday
A slight chance of rain and snow after noon. Cloudy, with a high near 35. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.
Tuesday Night
Rain and snow before 9pm, then rain between 9pm and 3am, then rain and snow likely after 3am. Low around 30. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 31. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly cloudy, with a low around 8. Northwest wind 5 to 10 mph.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 21. Northwest wind 5 to 10 mph.
Thursday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 3.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 14.
Friday Night
Partly cloudy, with a low around -4.
Saturday
Partly sunny and cold, with a high near 7.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -5.
Sunday
Mostly sunny, with a high near 11.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Shirland IL
 42.54°N 89.22°W (Elev. 850 ft)
Last Update:
3:26 pm CST Dec 7, 2025
Forecast Valid:
4pm CST Dec 7, 2025-6pm CST Dec 14, 2025
 
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