Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

77°F

25°C

Humidity 83%
Wind Speed SE 8 mph
Barometer 30.06 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Aug 11:45 am CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • This Afternoon

    This Afternoon: Isolated rain between 1pm and 3pm, then isolated showers and thunderstorms after 3pm.  Mostly cloudy, with a high near 81. Southeast wind 5 to 10 mph becoming south.  Chance of precipitation is 20%.

    High: 81 °F

    Isolated
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Increasing clouds, with a low around 69. South wind around 5 mph becoming calm  in the evening.

    Low: 69 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms, mainly between 2pm and 3pm.  Partly sunny, with a high near 83. Northwest wind 5 to 15 mph.

    High: 83 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60. Northwest wind 5 to 10 mph.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59. West wind around 5 mph becoming calm.

    Low: 59 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 80. Southwest wind 5 to 15 mph.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm.  Low around 63. Southwest wind 5 to 10 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly cloudy, with a high near 76.

    High: 76 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Isolated rain between 1pm and 3pm, then isolated showers and thunderstorms after 3pm. Mostly cloudy, with a high near 81. Southeast wind 5 to 10 mph becoming south. Chance of precipitation is 20%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 69. South wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers and thunderstorms, mainly between 2pm and 3pm. Partly sunny, with a high near 83. Northwest wind 5 to 15 mph.
Sunday Night
Mostly clear, with a low around 60. Northwest wind 5 to 10 mph.
Monday
Sunny, with a high near 79. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 59. West wind around 5 mph becoming calm.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Southwest wind 5 to 15 mph.
Tuesday Night
Showers and possibly a thunderstorm. Low around 63. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 54.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
12:41 pm CDT Aug 15, 2026
12pm CDT Aug 15, 2026-6pm CDT Aug 21, 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