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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

57°F

14°C

Humidity 94%
Wind Speed SE 3 mph
Barometer 29.72 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 16 Apr 4:55 am CDT
Extended Forecast for

5 Miles SW Fort Atkinson WI

Flood Watch April 16, 05:04am until April 16, 01:00pm
Flood Advisory until April 16, 06:30am
Click here for hazard details and duration
Flood Watch
Flood Advisory
  •  
    Flood Watch April 16, 05:04am until April 16, 01:00pm
    Flood Advisory until April 16, 06:30am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 57 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 2pm. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 68. Northwest wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 68 °F

    Chance
    Showers and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Patchy fog between 1am and 3am. Otherwise, partly cloudy, with a low around 51. Southeast wind around 5 mph.

    Low: 51 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 76. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 30%.

    High: 76 °F

    Partly Sunny
    then Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: Showers and thunderstorms before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then showers likely after 1am. Low around 40. South wind around 15 mph becoming west after midnight. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    T-storms then
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm. Mostly sunny, with a high near 48. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 48 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. West wind 10 to 15 mph.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 48. Northwest wind 10 to 15 mph.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a low around 57. Southeast wind around 5 mph.
Thursday
A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 2pm. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 68. Northwest wind 5 to 10 mph. Chance of precipitation is 50%.
Thursday Night
Patchy fog between 1am and 3am. Otherwise, partly cloudy, with a low around 51. Southeast wind around 5 mph.
Friday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 76. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 30%.
Friday Night
Showers and thunderstorms before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then showers likely after 1am. Low around 40. South wind around 15 mph becoming west after midnight. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 30 percent chance of showers, mainly before 1pm. Mostly sunny, with a high near 48. Northwest wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 31. West wind 10 to 15 mph.
Sunday
Mostly sunny, with a high near 48. Northwest wind 10 to 15 mph.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Fort Atkinson WI
 42.88°N 88.9°W (Elev. 814 ft)
Last Update:
4:52 am CDT Apr 16, 2026
Forecast Valid:
5am CDT Apr 16, 2026-6pm CDT Apr 22, 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