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.

Mostly Cloudy and Breezy

48°F

9°C

Humidity 43%
Wind Speed NW 22 G 28 mph
Barometer 30.21 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 6 Apr 2:45 pm CDT
Extended Forecast for

Rockton IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 46. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph.

    High: 46 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 22. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 42. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 42 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 31. Southeast wind 10 to 15 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Slight Chance
    Snow Showers
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 64. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 64 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Showers likely. Mostly cloudy, with a low around 49. Breezy. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely and
    Breezy

  • Thursday

    Thursday: A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 64.

    High: 64 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 58.

    High: 58 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 46. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 22. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 42. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Tuesday Night
A slight chance of snow showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 31. Southeast wind 10 to 15 mph. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 64. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 49. Breezy. Chance of precipitation is 70%.
Thursday
A 40 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 64.
Thursday Night
Showers likely. Mostly cloudy, with a low around 44.
Friday
A chance of showers. Partly sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 60.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 48.
Sunday
A chance of showers. Mostly cloudy, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rockton IL
 42.45°N 89.05°W
Last Update:
1:21 pm CDT Apr 6, 2026
Forecast Valid:
3pm CDT Apr 6, 2026-6pm CDT Apr 12, 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