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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

88°F

31°C

Humidity 75%
Wind Speed Vrbl 6 mph
Barometer 29.96 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 1 Sep 12:45 pm CDT
Extended Forecast for

2 Miles NW Janesville WI

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 90. Heat index values as high as 97. Southwest wind 5 to 10 mph.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 73. Southwest wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 90. Heat index values as high as 97. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 90 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly between midnight and 1am. Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming south around 5 mph in the morning.

    High: 86 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Southeast wind around 5 mph.

    Low: 70 °F

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87. South wind around 5 mph.

    High: 87 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm.

    Low: 69 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 90. Heat index values as high as 97. Southwest wind 5 to 10 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 73. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny and hot, with a high near 90. Heat index values as high as 97. Light southwest wind increasing to 5 to 10 mph in the morning.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly between midnight and 1am. Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming south around 5 mph in the morning.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Southeast wind around 5 mph.
Friday
A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87. South wind around 5 mph.
Friday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Saturday Night
A 40 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 67.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 83.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 63.
Labor Day
Partly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Janesville WI
 42.71°N 89.03°W (Elev. 768 ft)
Last Update:
12:57 pm CDT Sep 1, 2026
Forecast Valid:
1pm CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation