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.

Overcast

34°F

1°C

Humidity 81%
Wind Speed E 7 mph
Barometer 30.12 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 3 Mar 6:45 am CST
Extended Forecast for

Rockton IL

  • Today

    Today: Isolated sprinkles before 9am. Mostly cloudy, with a high near 43. East wind around 5 mph becoming calm.

    High: 43 °F

    Isolated
    Sprinkles

  • Tonight

    Tonight: Partly cloudy, with a low around 29. Northeast wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 3pm. Partly sunny, with a high near 46. East wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 46 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 39. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%.

    Low: 39 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before noon. Cloudy, with a high near 50. East northeast wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 50 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after noon. High near 64. Chance of precipitation is 90%.

    High: 64 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

Detailed Forecast

Today
Isolated sprinkles before 9am. Mostly cloudy, with a high near 43. East wind around 5 mph becoming calm.
Tonight
Partly cloudy, with a low around 29. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers after 3pm. Partly sunny, with a high near 46. East wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 39. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%.
Thursday
Showers likely, mainly before noon. Cloudy, with a high near 50. East northeast wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 40.
Friday
Showers, with thunderstorms also possible after noon. High near 64. Chance of precipitation is 90%.
Friday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 60.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, 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:
6:17 am CST Mar 3, 2026
Forecast Valid:
7am CST Mar 3, 2026-6pm CDT Mar 9, 2026
 
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