National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

59°F

15°C

Humidity 63%
Wind Speed S 8 mph
Barometer 29.96 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 13 Oct 2:50 am CDT
Extended Forecast for

Harvard IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 55. South southeast wind around 5 mph.

    Low: 55 °F

    Mostly Cloudy

  • Columbus Day

    Columbus Day: A 20 percent chance of showers before 2pm. Mostly cloudy, with a high near 69. South wind around 5 mph becoming east in the afternoon.

    High: 69 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 49. Calm wind becoming north northeast around 5 mph after midnight.

    Low: 49 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69. North northeast wind 5 to 10 mph.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 51. Northeast wind around 5 mph, with gusts as high as 15 mph.

    Low: 51 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 55. South southeast wind around 5 mph.
Columbus Day
A 20 percent chance of showers before 2pm. Mostly cloudy, with a high near 69. South wind around 5 mph becoming east in the afternoon.
Monday Night
Mostly cloudy, with a low around 49. Calm wind becoming north northeast around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 69. North northeast wind 5 to 10 mph.
Tuesday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 51. Northeast wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Mostly cloudy, with a high near 63.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Partly sunny, with a high near 68.
Thursday Night
Mostly cloudy, with a low around 56.
Friday
Partly sunny, with a high near 76.
Friday Night
A chance of showers. Mostly cloudy, with a low around 56.
Saturday
A chance of showers. Partly sunny, with a high near 71.
Saturday Night
A chance of showers. Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harvard IL
 42.42°N 88.61°W
Last Update:
2:51 am CDT Oct 13, 2025
Forecast Valid:
3am CDT Oct 13, 2025-6pm CDT Oct 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