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

72°F

22°C

Humidity 38%
Wind Speed SW 12 G 22 mph
Barometer 29.66 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 9 Mar 4:45 pm CDT
Extended Forecast for

4 Miles NNW Milton WI

  • Tonight

    Tonight: Mostly clear, with a low around 40. West wind around 5 mph becoming calm.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 51. Northeast wind 10 to 15 mph.

    High: 51 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 7pm, then rain and possibly a thunderstorm between 7pm and 1am, then rain likely after 1am. Low around 33. Northeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Showers

  • Wednesday

    Wednesday: A chance of rain before 10am, then a chance of rain and snow between 10am and 1pm, then a chance of snow after 1pm. Cloudy, with a high near 39. Breezy, with a north wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    High: 39 °F

    Chance
    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Northwest wind 5 to 10 mph.

    Low: 23 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Increasing clouds, with a high near 45. West wind 5 to 10 mph becoming southwest in the afternoon.

    High: 45 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Rain. Low around 34. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 34 °F

    Rain and
    Breezy

  • Friday

    Friday: A slight chance of rain and snow before 1pm. Partly sunny, with a high near 45. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Friday Night

    Friday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 40. West wind around 5 mph becoming calm.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 51. Northeast wind 10 to 15 mph.
Tuesday Night
A chance of showers and thunderstorms before 7pm, then rain and possibly a thunderstorm between 7pm and 1am, then rain likely after 1am. Low around 33. Northeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of rain before 10am, then a chance of rain and snow between 10am and 1pm, then a chance of snow after 1pm. Cloudy, with a high near 39. Breezy, with a north wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Northwest wind 5 to 10 mph.
Thursday
Increasing clouds, with a high near 45. West wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Rain. Low around 34. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A slight chance of rain and snow before 1pm. Partly sunny, with a high near 45. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Friday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 27.
Saturday
A chance of snow before 1pm, then a slight chance of rain and snow. Cloudy, with a high near 42. Chance of precipitation is 30%.
Saturday Night
Rain and snow likely. Cloudy, with a low around 30. Chance of precipitation is 70%.
Sunday
Rain and snow. High near 39. Chance of precipitation is 80%.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 15.
Monday
Mostly cloudy, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Milton WI
 42.84°N 88.97°W (Elev. 794 ft)
Last Update:
3:13 pm CDT Mar 9, 2026
Forecast Valid:
5pm CDT Mar 9, 2026-6pm CDT Mar 16, 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