Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fog/Mist

32°F

0°C

Humidity 93%
Wind Speed Calm
Barometer 29.84 in
Dewpoint 30°F (-1°C)
Visibility 7.00 mi
Last update 8 May 5:45 am CDT
Extended Forecast for

5 Miles SSW Janesville WI

Frost Advisory May 8, 06:05am until May 8, 08:00am
Click here for hazard details and duration
...
  •  
    Frost Advisory May 8, 06:05am until May 8, 08:00am

    NOW until 8:00am Fri

    Frost Advisory

  • Today

    High: 67 °F

    Frost then
    Scattered
    Sprinkles

  • Tonight

    Tonight: Scattered sprinkles between 1am and 2am.  Partly cloudy, with a low around 46. South wind 5 to 10 mph.

    Low: 46 °F

    Scattered
    Sprinkles

  • Saturday

    Saturday: Scattered sprinkles between noon and 1pm.  Partly sunny, with a high near 68. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 68 °F

    Scattered
    Sprinkles

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41. Northwest wind 10 to 15 mph becoming light north  after midnight.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 60. Northwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 3am.  Otherwise, mostly clear, with a low around 36. Northwest wind 5 to 10 mph becoming light and variable  in the evening.

    Low: 36 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 7am.  Otherwise, sunny, with a high near 60. Light north wind becoming northwest 5 to 10 mph in the morning.

    High: 60 °F

    Areas Frost
    then Mostly
    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after 1am.  Partly cloudy, with a low around 39. Light and variable wind becoming southeast 5 to 10 mph in the evening.

    Low: 39 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
Scattered sprinkles after 1pm. Widespread frost before 7am. Otherwise, mostly sunny, with a high near 67. Light south wind becoming southwest 5 to 10 mph in the morning.
Tonight
Scattered sprinkles between 1am and 2am. Partly cloudy, with a low around 46. South wind 5 to 10 mph.
Saturday
Scattered sprinkles between noon and 1pm. Partly sunny, with a high near 68. West wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 41. Northwest wind 10 to 15 mph becoming light north after midnight.
Sunday
Mostly sunny, with a high near 60. Northwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.
Sunday Night
Areas of frost after 3am. Otherwise, mostly clear, with a low around 36. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Areas of frost before 7am. Otherwise, sunny, with a high near 60. Light north wind becoming northwest 5 to 10 mph in the morning.
Monday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 39. Light and variable wind becoming southeast 5 to 10 mph in the evening.
Tuesday
Showers, with thunderstorms also possible after 1pm. High near 62. Chance of precipitation is 80%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
5:57 am CDT May 8, 2026
6am CDT May 8, 2026-6pm CDT May 14, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database