Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Light Rain

59°F

15°C

Humidity 100%
Wind Speed Calm
Barometer 29.77 in
Dewpoint 59°F (15°C)
Visibility 2.00 mi
Last update 15 Oct 5:45 pm CDT
Extended Forecast for

Harvard IL

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm.  High near 59. Southeast wind around 5 mph.  Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 10pm, then a slight chance of showers between 10pm and 11pm.  Low around 45. South southeast wind 5 to 10 mph becoming west northwest 10 to 15 mph in the evening. Winds could gust as high as 30 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Showers then
    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers, mainly between 11am and 4pm.  Mostly cloudy, with a high near 52. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 52 °F

    Slight Chance
    Showers then
    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Widespread frost after 4am.  Otherwise, mostly clear, with a low around 32. North wind 5 to 15 mph, with gusts as high as 30 mph.

    Low: 32 °F

    Mostly Clear
    then Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am.  Otherwise, sunny, with a high near 56. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 56 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 59. Southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 10pm, then a slight chance of showers between 10pm and 11pm. Low around 45. South southeast wind 5 to 10 mph becoming west northwest 10 to 15 mph in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 50 percent chance of showers, mainly between 11am and 4pm. Mostly cloudy, with a high near 52. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Friday Night
Widespread frost after 4am. Otherwise, mostly clear, with a low around 32. North wind 5 to 15 mph, with gusts as high as 30 mph.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 56. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Harvard IL
 42.44°N 88.61°W
2:51 pm CDT Oct 15, 2026
5pm CDT Oct 15, 2026-6pm CDT Oct 22, 2026
 
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Additional Resources

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