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

61°F

16°C

Humidity 94%
Wind Speed S 14 G 17 mph
Barometer 29.91 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 2 Nov 10:55 pm CST
Extended Forecast for

Rockton IL

  • Tonight

    Tonight: A chance of rain before 3am, then a chance of showers, mainly between 3am and 4am. Cloudy, with a temperature rising to around 64 by 5am. Breezy, with a south wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 61 °F⇑

    Chance Rain
    and Breezy

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 5pm. High near 68. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 56. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, mainly before noon. Mostly cloudy, with a high near 59. Southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 59 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 48. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance
    Showers

  • Thursday Night

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

    Low: 40 °F

    Slight Chance
    Rain

  • Friday

    Friday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of rain before 3am, then a chance of showers, mainly between 3am and 4am. Cloudy, with a temperature rising to around 64 by 5am. Breezy, with a south wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday
Showers, with thunderstorms also possible after 5pm. High near 68. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 56. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, mainly before noon. Mostly cloudy, with a high near 59. Southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 48. Southwest wind around 10 mph, with gusts as high as 20 mph.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 54.
Thursday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 40.
Friday
Partly sunny, with a high near 51.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rockton IL
 42.45°N 89.08°W
Last Update:
9:16 pm CST Nov 2, 2026
Forecast Valid:
11pm CST Nov 2, 2026-6pm CST Nov 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