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.

Mostly Cloudy

55°F

13°C

Humidity 100%
Wind Speed NE 6 mph
Barometer 29.93 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 21 Jun 11:10 pm CDT
Extended Forecast for

6 Miles S Afton WI

  • Tonight

    Tonight: A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 55. North wind around 5 mph.

    Low: 55 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 76. Northeast wind 5 to 10 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. Northeast wind 5 to 10 mph becoming light in the evening.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Calm wind becoming east around 5 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 57. Calm wind becoming south around 5 mph after midnight.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 56. West wind 5 to 10 mph becoming light in the evening. Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 76. Northwest wind 5 to 10 mph.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 55. North wind around 5 mph.
Monday
Mostly sunny, with a high near 76. Northeast wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 50. Northeast wind 5 to 10 mph becoming light in the evening.
Tuesday
Mostly sunny, with a high near 78. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 57. Calm wind becoming south around 5 mph after midnight.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 56. West wind 5 to 10 mph becoming light in the evening. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 76. Northwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 54.
Friday
Mostly sunny, with a high near 78.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 58.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 80.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Afton WI
 42.6°N 89.07°W (Elev. 751 ft)
Last Update:
11:12 pm CDT Jun 21, 2026
Forecast Valid:
11pm CDT Jun 21, 2026-6pm CDT Jun 28, 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