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Heavy Rain in the Southern Appalachians; Fire Weather and Heat in the West; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding today. Gusty winds and low relative humidity will bring critical fire weather conditions to parts of the Great Basin and northern Rockies today and Thursday. Hot to extremely hot temperatures are in place through today across parts of the western U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fog/Mist

63°F

17°C

Humidity 100%
Wind Speed W 3 mph
Barometer 29.97 in
Dewpoint 63°F (17°C)
Visibility 5.00 mi
Last update 13 Aug 6:45 am CDT
Extended Forecast for

Harvard IL

  • Today

    Today: Sunny, with a high near 82. North northwest wind 5 to 10 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. North wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Calm wind becoming east around 5 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. East wind around 5 mph becoming calm.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. Calm wind becoming south around 5 mph in the morning. Winds could gust as high as 15 mph.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 82. North northwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 60. North wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 81. Calm wind becoming east around 5 mph.
Thursday Night
Mostly clear, with a low around 60. East wind around 5 mph becoming calm.
Friday
Sunny, with a high near 85. Calm wind becoming south around 5 mph in the morning. Winds could gust as high as 15 mph.
Friday Night
Mostly clear, with a low around 67.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Sunday
Partly sunny, with a high near 86.
Sunday Night
A chance of showers after 1am. Mostly cloudy, with a low around 66.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Tuesday
A chance of showers. Partly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harvard IL
 42.42°N 88.61°W
Last Update:
5:41 am CDT Aug 13, 2025
Forecast Valid:
7am CDT Aug 13, 2025-6pm CDT Aug 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