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.

Fair

37°F

3°C

Humidity 87%
Wind Speed SE 3 mph
Barometer 29.92 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 17 Feb 2:55 am CST
Extended Forecast for

5 Miles WSW Fort Atkinson WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 36. East wind around 5 mph.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after 5pm. Mostly cloudy, with a high near 53. East wind 5 to 15 mph.

    High: 53 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm before 3am, then a chance of rain and thunderstorms, mainly between 3am and 5am. Low around 44. East wind 10 to 15 mph becoming southwest after midnight. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Rain

  • Wednesday

    Wednesday: Sunny, with a high near 60. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 60 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. Southwest wind 5 to 10 mph becoming southeast after midnight.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain, mainly after noon. Mostly sunny, with a high near 55. East wind 5 to 10 mph.

    High: 55 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain before 3am, then rain and snow. Low around 33. East wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Rain then
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 40. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    High: 40 °F

    Breezy.
    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 36. East wind around 5 mph.
Tuesday
A 20 percent chance of rain after 5pm. Mostly cloudy, with a high near 53. East wind 5 to 15 mph.
Tuesday Night
Rain and possibly a thunderstorm before 3am, then a chance of rain and thunderstorms, mainly between 3am and 5am. Low around 44. East wind 10 to 15 mph becoming southwest after midnight. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Sunny, with a high near 60. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Wednesday Night
Partly cloudy, with a low around 33. Southwest wind 5 to 10 mph becoming southeast after midnight.
Thursday
A 40 percent chance of rain, mainly after noon. Mostly sunny, with a high near 55. East wind 5 to 10 mph.
Thursday Night
Rain before 3am, then rain and snow. Low around 33. East wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 40. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 23.
Saturday
A 20 percent chance of snow after noon. Partly sunny, with a high near 36.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 19.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 30.
Sunday Night
Partly cloudy, with a low around 14.
Monday
Sunny, with a high near 30.
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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:
1:47 am CST Feb 17, 2026
Forecast Valid:
3am CST Feb 17, 2026-6pm CST Feb 23, 2026
 
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