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

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fog/Mist

54°F

12°C

Humidity 100%
Wind Speed SE 7 mph
Barometer 29.62 in
Dewpoint 54°F (12°C)
Visibility 5.00 mi
Wind Chill52°F (11°C)
Last update 2 Apr 2:45 pm CDT
Extended Forecast for

5 Miles SSW Janesville WI

Tornado Watch until April 2, 08:00pm
Click here for hazard details and duration
Tornado Watch
  •  
    Tornado Watch until April 2, 08:00pm

    NOW until 8:00pm Thu

    Tornado Watch

  • This Afternoon

    High: 65 °F

    Showers and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Some of the storms could be severe. Low around 38. Breezy, with a south wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Severe
    Thunderstorms
    and Breezy
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 60. West wind 5 to 10 mph becoming east in the afternoon.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then showers likely after 4am. Low around 40. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Showers

  • Saturday

    Saturday: Showers likely, mainly before 10am. Cloudy, with a high near 52. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Showers
    Likely then
    Slight Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 33 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 50. Northwest wind around 15 mph.

    High: 50 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. West wind 5 to 10 mph.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 65. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Some of the storms could be severe. Low around 38. Breezy, with a south wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Partly sunny, with a high near 60. West wind 5 to 10 mph becoming east in the afternoon.
Friday Night
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then showers likely after 4am. Low around 40. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers likely, mainly before 10am. Cloudy, with a high near 52. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly cloudy, with a low around 33. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 50. Northwest wind around 15 mph.
Sunday Night
Partly cloudy, with a low around 33. West wind 5 to 10 mph.
Monday
Partly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Sunny, with a high near 45.
Tuesday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 59. Breezy.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 46.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
3:02 pm CDT Apr 2, 2026
Forecast Valid:
3pm CDT Apr 2, 2026-6pm CDT Apr 9, 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