National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

39°F

4°C

Humidity 87%
Wind Speed NE 5 mph
Barometer 30.08 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 24 Dec 8:45 pm CST
Extended Forecast for

5 Miles SW Fort Atkinson WI

  • Tonight

    Tonight: Areas of drizzle before midnight. Cloudy, with a low around 32. Calm wind becoming north around 5 mph after midnight.

    Low: 32 °F

    Areas Drizzle
    then Mostly
    Cloudy

  • Christmas Day

    Christmas Day: Mostly cloudy, with a high near 38. East wind 10 to 15 mph.

    High: 38 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A slight chance of snow before 7pm, then rain. Low around 33. East wind 5 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 33 °F

    Slight Chance
    Rain/Snow
    then Rain

  • Friday

    Friday: A 40 percent chance of rain before noon. Cloudy, with a high near 44. Southeast wind around 5 mph becoming northwest in the afternoon.

    High: 44 °F

    Chance Rain
    then Cloudy

  • Friday Night

    Friday Night: Cloudy, with a low around 33. North wind around 5 mph becoming calm.

    Low: 33 °F

    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 46. Southeast wind 5 to 10 mph.

    High: 46 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Cloudy, with a low around 35. Southeast wind 5 to 10 mph becoming north after midnight.

    Low: 35 °F

    Cloudy

  • Sunday

    Sunday: A slight chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a temperature rising to near 40 by 10am, then falling to around 28 during the remainder of the day. Breezy, with a northwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.

    High: 40 °F⇓

    Slight Chance
    Rain then
    Chance
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 9. Windy.

    Low: 9 °F

    Slight Chance
    Snow and
    Blustery then
    Mostly Cloudy
    and Windy

Detailed Forecast

Tonight
Areas of drizzle before midnight. Cloudy, with a low around 32. Calm wind becoming north around 5 mph after midnight.
Christmas Day
Mostly cloudy, with a high near 38. East wind 10 to 15 mph.
Thursday Night
A slight chance of snow before 7pm, then rain. Low around 33. East wind 5 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday
A 40 percent chance of rain before noon. Cloudy, with a high near 44. Southeast wind around 5 mph becoming northwest in the afternoon.
Friday Night
Cloudy, with a low around 33. North wind around 5 mph becoming calm.
Saturday
Mostly cloudy, with a high near 46. Southeast wind 5 to 10 mph.
Saturday Night
Cloudy, with a low around 35. Southeast wind 5 to 10 mph becoming north after midnight.
Sunday
A slight chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a temperature rising to near 40 by 10am, then falling to around 28 during the remainder of the day. Breezy, with a northwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 9. Windy.
Monday
Mostly sunny, with a high near 21. Windy.
Monday Night
Partly cloudy, with a low around 10.
Tuesday
Partly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 13.
Wednesday
Partly sunny, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Fort Atkinson WI
 42.88°N 88.9°W (Elev. 814 ft)
Last Update:
8:31 pm CST Dec 24, 2025
Forecast Valid:
9pm CST Dec 24, 2025-6pm CST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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