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.

Fair

48°F

9°C

Humidity 58%
Wind Speed Calm
Barometer 30.30 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 20 May 10:55 pm CDT
Extended Forecast for

4 Miles WNW Clinton WI

  • Tonight

    Tonight: Partly cloudy, with a low around 43. Northeast wind 5 to 10 mph.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of sprinkles after 10am. Mostly cloudy, with a high near 59. East wind around 15 mph.

    High: 59 °F

    Slight Chance
    Sprinkles

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 45. East wind around 10 mph.

    Low: 45 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 4pm. Partly sunny, with a high near 65. Breezy, with an east wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 65 °F

    Partly Sunny
    then Slight
    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Cloudy, with a low around 50. East wind 10 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 73. Northeast wind around 10 mph becoming northwest in the afternoon.

    High: 73 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. Northeast wind 5 to 10 mph.
Thursday
A slight chance of sprinkles after 10am. Mostly cloudy, with a high near 59. East wind around 15 mph.
Thursday Night
Mostly cloudy, with a low around 45. East wind around 10 mph.
Friday
A 20 percent chance of showers after 4pm. Partly sunny, with a high near 65. Breezy, with an east wind 15 to 20 mph, with gusts as high as 25 mph.
Friday Night
Showers likely, mainly after 1am. Cloudy, with a low around 50. East wind 10 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 73. Northeast wind around 10 mph becoming northwest in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Light and variable wind becoming west 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 52.
Memorial Day
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 84.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Clinton WI
 42.58°N 88.92°W (Elev. 797 ft)
Last Update:
11:13 pm CDT May 20, 2026
Forecast Valid:
11pm CDT May 20, 2026-6pm CDT May 27, 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