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.

Partly Cloudy

70°F

21°C

Humidity 78%
Wind Speed Vrbl 3 mph
Barometer 30.03 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 13 Jul 9:45 am CDT
Extended Forecast for

Harvard IL

  • Today

    Today: Partly sunny, with a high near 79. West wind around 5 mph.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 63. West wind around 5 mph becoming calm.

    Low: 63 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 85. Calm wind becoming west southwest around 5 mph in the morning. Winds could gust as high as 10 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Calm wind becoming south around 5 mph in the morning. Winds could gust as high as 15 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 50%.

    High: 85 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78.

    High: 78 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

Today
Partly sunny, with a high near 79. West wind around 5 mph.
Tonight
Partly cloudy, with a low around 63. West wind around 5 mph becoming calm.
Monday
Sunny, with a high near 85. Calm wind becoming west southwest around 5 mph in the morning. Winds could gust as high as 10 mph.
Monday Night
Mostly clear, with a low around 64. Calm wind.
Tuesday
Sunny, with a high near 86. Calm wind becoming south around 5 mph in the morning. Winds could gust as high as 15 mph.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 63.
Thursday
A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 59.
Saturday
A chance of showers. Partly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harvard IL
 42.42°N 88.61°W
Last Update:
9:56 am CDT Jul 13, 2025
Forecast Valid:
10am CDT Jul 13, 2025-6pm CDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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