Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

55°F

13°C

Humidity 82%
Wind Speed Calm
Barometer 29.87 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 22 Apr 12:55 am CDT
Extended Forecast for

5 Miles SSW Janesville WI

Flood Warning until further notice
Click here for hazard details and duration
Flood Warning until further notice
  •  
    Flood Warning until further notice

    NOW until further notice

    Flood Warning

  • Overnight

    Low: 49 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am.  Otherwise, sunny, with a high near 75. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 75 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. Southeast wind 5 to 10 mph.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 61. South wind around 15 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm.  Cloudy, then gradually becoming mostly sunny, with a high near 72. South wind 10 to 15 mph becoming west in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly clear, with a low around 47. Northwest wind 5 to 10 mph.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 66. North wind 10 to 15 mph.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 49. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, sunny, with a high near 75. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 56. Southeast wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. South wind around 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely and possibly a thunderstorm. Cloudy, then gradually becoming mostly sunny, with a high near 72. South wind 10 to 15 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly clear, with a low around 47. Northwest wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 66. North wind 10 to 15 mph.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 65.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
11:46 pm CDT Apr 21, 2026
1am CDT Apr 22, 2026-6pm CDT Apr 28, 2026
 
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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