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.

Fog Light Rain

41°F

5°C

Humidity 100%
Wind Speed N 5 mph
Barometer 29.60 in
Dewpoint 41°F (5°C)
Visibility 0.50 mi
Wind Chill38°F (3°C)
Last update 28 Dec 8:45 am CST
Extended Forecast for

Milton WISimilar City Names

Wind Advisory December 28, 06:00pm until December 29, 06:00pm
Dense Fog Advisory December 28, 08:56am until December 28, 12:00pm
Click here for hazard details and duration
Wind Advisory
Dense Fog Advisory
  •  
    Dense Fog Advisory December 28, 08:56am until December 28, 12:00pm

    NOW until 12:00pm Sun

    Dense Fog Advisory

  • Today

    High: 47 °F

    Rain and
    Areas Fog

  • Tonight

    Tonight: A chance of rain and snow before 8pm, then snow. Patchy blowing snow after 9pm. Low around 15. Wind chill values between zero and 10. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    Low: 15 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow likely before 9am. Areas of blowing snow. Mostly cloudy, with a high near 22. Wind chill values between -5 and 5. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 22 °F

    Snow Likely
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Patchy blowing snow before 7pm. Partly 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

    Patchy
    Blowing Snow
    then Mostly
    Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 26. Southwest wind 10 to 15 mph.

    High: 26 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a steady temperature around 25. Southwest wind 10 to 15 mph becoming northwest after midnight.

    Low: 25 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 26. Northwest wind 10 to 15 mph.

    High: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 9. Northwest wind around 10 mph.

    Low: 9 °F

    Chance Snow
    then Partly
    Cloudy

Detailed Forecast

Today
Rain, mainly after 9am. Areas of fog. High near 47. East wind 5 to 10 mph becoming northwest 10 to 15 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
A chance of rain and snow before 8pm, then snow. Patchy blowing snow after 9pm. Low around 15. Wind chill values between zero and 10. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Monday
Snow likely before 9am. Areas of blowing snow. Mostly cloudy, with a high near 22. Wind chill values between -5 and 5. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
Patchy blowing snow before 7pm. Partly 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
Partly sunny, with a high near 26. Southwest wind 10 to 15 mph.
Tuesday Night
Mostly cloudy, with a steady temperature around 25. Southwest wind 10 to 15 mph becoming northwest after midnight.
Wednesday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 26. Northwest wind 10 to 15 mph.
Wednesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 9. Northwest wind around 10 mph.
New Year's Day
Mostly cloudy, then gradually becoming sunny, with a high near 17.
Thursday Night
Mostly clear, with a low around 5.
Friday
Mostly sunny, with a high near 23.
Friday Night
Mostly cloudy, with a low around 14.
Saturday
Partly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Milton WISimilar City Names
 42.77°N 88.94°W (Elev. 896 ft)
Last Update:
7:43 am CST Dec 28, 2025
Forecast Valid:
8am CST Dec 28, 2025-6pm CST Jan 3, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation