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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

77°F

25°C

Humidity 83%
Wind Speed S 3 mph
Barometer 29.94 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 31 Aug 10:15 pm CDT
Extended Forecast for

4 Miles WNW Clinton WI

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm.

    Low: 71 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 89. Heat index values as high as 97. Light southwest wind becoming west 5 to 10 mph in the morning.

    High: 89 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 90. Heat index values as high as 99. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 90 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm after midnight.

    Low: 71 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms before 1pm. 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, mainly after 1am. Partly cloudy, with a low around 68. Southeast wind around 5 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Southeast wind around 5 mph.

    High: 86 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm.
Tuesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 89. Heat index values as high as 97. Light southwest wind becoming west 5 to 10 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 72. 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 99. Light southwest wind increasing to 5 to 10 mph in the morning.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm after midnight.
Thursday
A 50 percent chance of showers and thunderstorms before 1pm. 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, mainly after 1am. Partly cloudy, with a low around 68. Southeast wind around 5 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Southeast wind around 5 mph.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Saturday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 83.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 63.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 61.
Labor Day
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Clinton WI
 42.58°N 88.95°W (Elev. 817 ft)
Last Update:
8:36 pm CDT Aug 31, 2026
Forecast Valid:
10pm CDT Aug 31, 2026-6pm CDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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