Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast and Breezy

21°F

-6°C

Humidity 80%
Wind Speed NW 25 G 35 mph
Barometer 29.90 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 29 Dec 8:45 am CST
Extended Forecast for

5 Miles SSW Janesville WI

Winter Weather Advisory December 29, 08:47am until December 29, 06:00pm
Wind Advisory December 29, 08:47am until December 29, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
Wind Advisory
  •  
    Winter Weather Advisory December 29, 08:47am until December 29, 06:00pm
    Wind Advisory December 29, 08:47am until December 29, 12:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 20 °F

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

  • Tonight

    Tonight: Mostly cloudy, with a low around 8. Wind chill values between -5 and zero. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 8 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow after noon.  Partly sunny, with a high near 26. Wind chill values between -5 and 5. West wind 10 to 15 mph.

    High: 26 °F

    Mostly Sunny
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 20. West wind 10 to 15 mph.

    Low: 20 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of snow, mainly after noon.  Cloudy, with a high near 28. Northwest wind around 15 mph.

    High: 28 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 4. Northwest wind 5 to 10 mph.

    Low: 4 °F

    Decreasing
    Clouds

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 15. West wind around 10 mph.

    High: 15 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 6. West wind 5 to 10 mph.

    Low: 6 °F

    Mostly Cloudy

Detailed Forecast

Today
A slight chance of snow before 9am, then a chance of flurries between 9am and 3pm. Patchy blowing snow before 2pm. Cloudy, with a high near 20. Wind chill values between -5 and 5. Windy, with a northwest wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 8. Wind chill values between -5 and zero. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday
A 30 percent chance of snow after noon. Partly sunny, with a high near 26. Wind chill values between -5 and 5. West wind 10 to 15 mph.
Tuesday Night
Mostly cloudy, with a low around 20. West wind 10 to 15 mph.
Wednesday
A 40 percent chance of snow, mainly after noon. Cloudy, with a high near 28. Northwest wind around 15 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 4. Northwest wind 5 to 10 mph.
New Year's Day
Mostly sunny, with a high near 15. West wind around 10 mph.
Thursday Night
Mostly cloudy, with a low around 6. West wind 5 to 10 mph.
Friday
Partly sunny, with a high near 21.
Friday Night
Mostly cloudy, with a low around 9.
Saturday
Partly sunny, with a high near 23.
Saturday Night
Mostly cloudy, with a low around 11.
Sunday
Partly sunny, with a high near 26.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
8:13 am CST Dec 29, 2025
8am CST Dec 29, 2025-6pm CST Jan 4, 2026
 
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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