Extreme Heat and Fire Weather Conditions in the West; Heavy Rain in the Southeast; Poor Air Quality

Extreme heat will begin to peak across the Desert Southwest. Multiple days of hot, dry and windy conditions are expected to bring fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and a flash flooding threat continues in the Southeast. Poor air quality persists from the Upper Midwest into the Northeast due to wildfire smoke. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fog/Mist

61°F

16°C

Humidity 94%
Wind Speed Calm
Barometer 30.25 in
Dewpoint 59°F (15°C)
Visibility 4.00 mi
Last update 6 Aug 2:50 am CDT
Extended Forecast for

3 Miles SW Janesville WI

  • Overnight

    Overnight: Areas of smoke. Patchy fog.  Otherwise, mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of smoke before 11am. Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64. South wind around 5 mph.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 10am.  Mostly sunny, with a high near 85. Light south wind becoming southwest 5 to 10 mph in the morning.  Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 69. South wind around 5 mph.

    Low: 69 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 88. South wind 5 to 10 mph.

    High: 88 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. South wind 5 to 10 mph.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89. South wind around 10 mph.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Clear
    then Chance
    Showers

Detailed Forecast

Overnight
Areas of smoke. Patchy fog. Otherwise, mostly clear, with a low around 59. Calm wind.
Wednesday
Areas of smoke before 11am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 64. South wind around 5 mph.
Thursday
A slight chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 85. Light south wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. South wind around 5 mph.
Friday
Mostly sunny, with a high near 88. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 71. South wind 5 to 10 mph.
Saturday
Sunny, with a high near 89. South wind around 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Janesville WI
 42.65°N 89.07°W (Elev. 748 ft)
12:54 am CDT Aug 6, 2025
3am CDT Aug 6, 2025-6pm CDT Aug 12, 2025
 
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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