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.

Light Snow

23°F

-5°C

Humidity 100%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 23°F (-5°C)
Visibility 2.00 mi
Last update 1 Dec 4:45 pm CST
Extended Forecast for

2 Miles NE Poplar Grove IL

Winter Weather Advisory December 1, 05:38pm until December 2, 12:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 1, 05:38pm until December 2, 12:00am

    NOW until 12:00am Tue

    Winter Weather Advisory

  • This Afternoon

    High: 26 °F

    Snow

  • Tonight

    Tonight: Snow before 10pm, then a chance of snow with intermittent flurries between 10pm and midnight. Low around 11. Calm wind becoming northwest around 5 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 11 °F

    Snow then
    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 20. West northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 20 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy, with a low around 15. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 15 °F

    Cloudy

  • Wednesday

    Wednesday: Snow showers likely. Cloudy, with a high near 31. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    High: 31 °F

    Snow Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -5.

    Low: -5 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and cold, with a high near 9.

    High: 9 °F

    Cold

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -7.

    Low: -7 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Snow. High near 26. South wind around 5 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow before 10pm, then a chance of snow with intermittent flurries between 10pm and midnight. Low around 11. Calm wind becoming northwest around 5 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday
Mostly cloudy, with a high near 20. West northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
Cloudy, with a low around 15. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Snow showers likely. Cloudy, with a high near 31. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Wednesday Night
Partly cloudy, with a low around -5.
Thursday
Sunny and cold, with a high near 9.
Thursday Night
Partly cloudy, with a low around -7.
Friday
Partly sunny, with a high near 22.
Friday Night
Mostly cloudy, with a low around 13.
Saturday
Mostly cloudy, with a high near 26.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 10.
Sunday
Partly sunny, with a high near 22.
Sunday Night
Partly cloudy, with a low around 1.
Monday
Mostly cloudy, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Poplar Grove IL
 42.4°N 88.79°W
Last Update:
3:11 pm CST Dec 1, 2025
Forecast Valid:
5pm CST Dec 1, 2025-6pm CST Dec 8, 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