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.

Mostly Cloudy

72°F

22°C

Humidity 57%
Wind Speed Calm
Barometer 29.87 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 13 Oct 5:45 pm CDT
Extended Forecast for

Rockton IL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 1am. Increasing clouds, with a low around 57. Northwest wind around 5 mph becoming calm after midnight.

    Low: 57 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 66. North northeast wind 5 to 10 mph.

    High: 66 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 7am. High near 62. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.

    High: 62 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely before 1am. Mostly cloudy, with a low around 43. Breezy, with a northwest wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 43 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 56. Breezy.

    High: 56 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Areas of frost after 2am. Otherwise, mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear
    then Areas
    Frost

  • Saturday

    Saturday: Areas of frost before 9am. Otherwise, sunny, with a high near 59.

    High: 59 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before 1am. Increasing clouds, with a low around 57. Northwest wind around 5 mph becoming calm after midnight.
Wednesday
Mostly cloudy, with a high near 66. North northeast wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 52. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Showers, mainly after 7am. High near 62. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.
Thursday Night
Showers likely before 1am. Mostly cloudy, with a low around 43. Breezy, with a northwest wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 56. Breezy.
Friday Night
Areas of frost after 2am. Otherwise, mostly clear, with a low around 31.
Saturday
Areas of frost before 9am. Otherwise, sunny, with a high near 59.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 66.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rockton IL
 42.45°N 89.08°W
Last Update:
3:17 pm CDT Oct 13, 2026
Forecast Valid:
6pm CDT Oct 13, 2026-6pm CDT Oct 20, 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