National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

37°F

3°C

Humidity 70%
Wind Speed E 8 mph
Barometer 30.04 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 17 Nov 10:55 pm CST
Extended Forecast for

Rockton IL

  • Tonight

    Tonight: Rain, mainly after midnight. Low around 37. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain

  • Tuesday

    Tuesday: Showers with occasional drizzle before 7am, then occasional drizzle with showers likely after 7am. High near 42. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Showers then
    Drizzle

  • Tuesday Night

    Tuesday Night: Cloudy, with a low around 35. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 35 °F

    Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 45. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 45 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

  • Friday

    Friday: A chance of rain after noon. Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain before midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Tonight
Rain, mainly after midnight. Low around 37. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers with occasional drizzle before 7am, then occasional drizzle with showers likely after 7am. High near 42. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Cloudy, with a low around 35. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Cloudy, with a high near 45. Northeast wind around 5 mph becoming southeast in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 37. Calm wind.
Thursday
A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 54.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 32.
Friday
A chance of rain after noon. Partly sunny, with a high near 47.
Friday Night
A chance of rain before midnight. Mostly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rockton IL
 42.45°N 89.08°W
Last Update:
9:11 pm CST Nov 17, 2025
Forecast Valid:
11pm CST Nov 17, 2025-6pm CST Nov 24, 2025
 
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