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

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

84°F

29°C

Humidity 62%
Wind Speed SW 13 mph
Barometer 30.02 in
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Heat Index88°F (31°C)
Last update 15 Jul 12:45 pm CDT
Extended Forecast for

2 Miles NW Janesville WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 87. South wind around 10 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 86. South wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Mostly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 4am, then a chance of showers. Mostly cloudy, with a low around 61. Southwest wind around 5 mph becoming northwest after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    Showers
    Likely

  • Thursday

    Thursday: A slight chance of showers before 7am, then a slight chance of showers and thunderstorms between 7am and 10am, then a slight chance of showers after 10am. Mostly cloudy, with a high near 71. North wind around 10 mph. Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 54. Northeast wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 76. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 87. South wind around 10 mph.
Tonight
Partly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 86. South wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely before 4am, then a chance of showers. Mostly cloudy, with a low around 61. Southwest wind around 5 mph becoming northwest after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A slight chance of showers before 7am, then a slight chance of showers and thunderstorms between 7am and 10am, then a slight chance of showers after 10am. Mostly cloudy, with a high near 71. North wind around 10 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 54. Northeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 76. Northeast wind around 5 mph becoming southeast in the afternoon.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Janesville WI
 42.71°N 89.03°W (Elev. 768 ft)
Last Update:
1:08 pm CDT Jul 15, 2025
Forecast Valid:
1pm CDT Jul 15, 2025-6pm CDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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