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

77°F

25°C

Humidity 69%
Wind Speed N 13 mph
Barometer 30.01 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 5 Jul 10:45 am CDT
Extended Forecast for

Harvard ILSimilar City Names

  • This Afternoon

    This Afternoon: A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 78. Northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 78 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 60. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 60 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 80. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 58. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

    Low: 58 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. Calm wind.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 1am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83.

    High: 83 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 78. Northeast wind around 10 mph, with gusts as high as 15 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 60. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 80. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Clear, with a low around 58. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Tuesday
Sunny, with a high near 84. Calm wind.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 67.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Friday
Partly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harvard ILSimilar City Names
 42.42°N 88.61°W
Last Update:
1:21 pm CDT Jul 5, 2026
Forecast Valid:
1pm CDT Jul 5, 2026-6pm CDT Jul 11, 2026
 
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Additional Resources

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