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.

Fair

37°F

3°C

Humidity 65%
Wind Speed SE 7 mph
Barometer 30.10 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 25 Mar 4:10 am CDT
Extended Forecast for

Harvard IL

  • Today

    Today: Partly sunny, with a high near 69. South southwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 69 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 50. South southwest wind 5 to 10 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 74. Breezy, with a south wind 5 to 10 mph becoming north northeast 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 74 °F

    Mostly Sunny
    then Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 26. Blustery, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 26 °F

    Blustery.
    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 43. North northeast wind 10 to 15 mph.

    High: 43 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 69. South southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 50. South southwest wind 5 to 10 mph.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 74. Breezy, with a south wind 5 to 10 mph becoming north northeast 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 26. Blustery, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
Mostly sunny, with a high near 43. North northeast wind 10 to 15 mph.
Friday Night
Mostly clear, with a low around 24.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Partly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 70.
Monday Night
A chance of showers. Mostly cloudy, with a low around 48.
Tuesday
A chance of showers. Mostly cloudy, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harvard IL
 42.42°N 88.61°W
Last Update:
4:26 am CDT Mar 25, 2026
Forecast Valid:
4am CDT Mar 25, 2026-6pm CDT Mar 31, 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