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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

28°F

-2°C

Humidity 80%
Wind Speed NW 6 mph
Barometer 29.89 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 6 Dec 7:45 am CST
Extended Forecast for

5 Miles WSW Fort Atkinson WI

Winter Weather Advisory December 6, 10:00pm until December 7, 08:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Today

    Today: Increasing clouds, with a high near 27. Northwest wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 27 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Snow, mainly after 9pm. The snow could be heavy at times. Low around 14. Light east wind becoming northeast 5 to 10 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 14 °F

    Heavy Snow

  • Sunday

    Sunday: A 20 percent chance of snow before 9am. Cloudy through mid morning, then gradual clearing, with a high near 19. North wind around 10 mph.

    High: 19 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -2. North wind 5 to 10 mph becoming light after midnight.

    Low: -2 °F

    Mostly Cloudy

  • 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 50 percent chance of snow. Mostly cloudy, with a low around 13. Breezy, with a south wind 10 to 20 mph.

    Low: 13 °F

    Chance Snow
    and Breezy

  • Tuesday

    Tuesday: A chance of rain and snow after noon. Mostly cloudy, with a high near 34. Southwest wind 10 to 15 mph. Chance of precipitation is 30%.

    High: 34 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain and snow. Low around 25. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 25 °F

    Rain/Snow and
    Breezy

  • Wednesday

    Wednesday: A 50 percent chance of snow. Mostly cloudy, with a high near 31. Breezy.

    High: 31 °F

    Chance Snow
    and Breezy

Detailed Forecast

Today
Increasing clouds, with a high near 27. Northwest wind 5 to 10 mph becoming light and variable in the afternoon.
Tonight
Snow, mainly after 9pm. The snow could be heavy at times. Low around 14. Light east wind becoming northeast 5 to 10 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Sunday
A 20 percent chance of snow before 9am. Cloudy through mid morning, then gradual clearing, with a high near 19. North wind around 10 mph.
Sunday Night
Mostly cloudy, with a low around -2. North wind 5 to 10 mph becoming light 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 50 percent chance of snow. Mostly cloudy, with a low around 13. Breezy, with a south wind 10 to 20 mph.
Tuesday
A chance of rain and snow after noon. Mostly cloudy, with a high near 34. Southwest wind 10 to 15 mph. Chance of precipitation is 30%.
Tuesday Night
Rain and snow. Low around 25. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 50 percent chance of snow. Mostly cloudy, with a high near 31. Breezy.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 9.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 20.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 6.
Friday
Partly sunny, with a high near 15.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Fort Atkinson WI
 42.88°N 88.93°W (Elev. 774 ft)
Last Update:
7:51 am CST Dec 6, 2025
Forecast Valid:
8am CST Dec 6, 2025-6pm CST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation