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.

Mostly Cloudy

81°F

27°C

Humidity 79%
Wind Speed SW 12 G 23 mph
Barometer 29.73 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 16 Jul 4:45 pm CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely. Some of the storms could be severe. Mostly cloudy, with a steady temperature around 83. Southwest wind around 15 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely before 10pm, then a chance of showers. Mostly cloudy, with a low around 62. West wind 5 to 15 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    T-storms
    Likely then
    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly cloudy, with a high near 70. North wind 5 to 10 mph.

    High: 70 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. Northeast wind 5 to 10 mph becoming light east in the evening.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 78. Calm wind becoming east around 5 mph in the morning.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 63. Southeast wind around 5 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. South wind 5 to 10 mph becoming west in the afternoon.

    High: 80 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 62 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 78.

    High: 78 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Showers and thunderstorms likely. Some of the storms could be severe. Mostly cloudy, with a steady temperature around 83. Southwest wind around 15 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 10pm, then a chance of showers. Mostly cloudy, with a low around 62. West wind 5 to 15 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly cloudy, with a high near 70. North wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 54. Northeast wind 5 to 10 mph becoming light east in the evening.
Friday
Mostly sunny, with a high near 78. Calm wind becoming east around 5 mph in the morning.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 63. Southeast wind around 5 mph. Chance of precipitation is 50%.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. South wind 5 to 10 mph becoming west in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 78.
Sunday Night
A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 62.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
5:38 pm CDT Jul 16, 2025
Forecast Valid:
5pm CDT Jul 16, 2025-6pm CDT Jul 23, 2025
 
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