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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

43°F

6°C

Humidity 66%
Wind Speed NE 5 mph
Barometer 30.32 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 21 May 3:35 am CDT
Extended Forecast for

Harvard ILSimilar City Names

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 43. East northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of sprinkles between 8am and 1pm. Partly sunny, with a high near 59. East northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 59 °F

    Slight Chance
    Sprinkles

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 45. East northeast wind 10 to 15 mph.

    Low: 45 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 64. East wind around 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers. Cloudy, with a low around 50. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 70.

    High: 70 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 43. East northeast wind around 10 mph, with gusts as high as 20 mph.
Thursday
A slight chance of sprinkles between 8am and 1pm. Partly sunny, with a high near 59. East northeast wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 45. East northeast wind 10 to 15 mph.
Friday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 64. East wind around 15 mph, with gusts as high as 25 mph.
Friday Night
A 50 percent chance of showers. Cloudy, with a low around 50. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 70.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 53.
Memorial Day
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 58.
Wednesday
A chance of showers. Partly 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:
3:36 am CDT May 21, 2026
Forecast Valid:
3am CDT May 21, 2026-6pm CDT May 27, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation