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.

Overcast

41°F

5°C

Humidity 87%
Wind Speed W 13 mph
Barometer 30.02 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 3 Apr 7:45 am CDT
Extended Forecast for

Rockton IL

  • Today

    Today: Mostly cloudy, with a high near 60. West wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 15 mph.

    High: 60 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a chance of showers. Low around 42. Breezy, with an east wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 42 °F

    T-storms and
    Breezy

  • Saturday

    Saturday: A slight chance of showers before 7am, then a slight chance of showers after 1pm. Mostly cloudy, with a steady temperature around 48. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 33 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 51 °F

    Mostly Cloudy
    and Breezy
    then Sunny

  • Sunday Night

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

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 60. West wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 15 mph.
Tonight
Showers and thunderstorms before 4am, then a chance of showers. Low around 42. Breezy, with an east wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A slight chance of showers before 7am, then a slight chance of showers after 1pm. Mostly cloudy, with a steady temperature around 48. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 33. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 51. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A chance of rain and snow showers. Partly sunny, with a high near 62. Breezy.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 46.
Thursday
A chance of showers. Mostly cloudy, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rockton IL
 42.45°N 89.05°W
Last Update:
3:51 am CDT Apr 3, 2026
Forecast Valid:
8am CDT Apr 3, 2026-6pm CDT Apr 9, 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