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.

Partly Cloudy

59°F

15°C

Humidity 48%
Wind Speed W 13 mph
Barometer 30.04 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 9 Nov 1:45 pm CST
Extended Forecast for

2 Miles SW Jefferson WI

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 58. Southwest wind around 10 mph.

    High: 58 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 37. Southwest wind 5 to 10 mph becoming northwest after midnight.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 61. Northwest wind around 5 mph.

    High: 61 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 5am. Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Veterans Day

    Veterans Day: A 30 percent chance of rain. Mostly cloudy, with a high near 52. Light and variable wind becoming north 5 to 10 mph in the morning.

    High: 52 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 33. North wind 5 to 15 mph.

    Low: 33 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: Mostly cloudy, with a high near 43. North wind around 15 mph, with gusts as high as 30 mph.

    High: 43 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26. North wind 10 to 15 mph.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 58. Southwest wind around 10 mph.
Tonight
Mostly clear, with a low around 37. Southwest wind 5 to 10 mph becoming northwest after midnight.
Tuesday
Increasing clouds, with a high near 61. Northwest wind around 5 mph.
Tuesday Night
A 20 percent chance of rain after 5am. Mostly cloudy, with a low around 38. Calm wind.
Veterans Day
A 30 percent chance of rain. Mostly cloudy, with a high near 52. Light and variable wind becoming north 5 to 10 mph in the morning.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 33. North wind 5 to 15 mph.
Thursday
Mostly cloudy, with a high near 43. North wind around 15 mph, with gusts as high as 30 mph.
Thursday Night
Partly cloudy, with a low around 26. North wind 10 to 15 mph.
Friday
Mostly sunny, with a high near 41.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 44.
Saturday Night
Mostly clear, with a low around 28.
Sunday
A 20 percent chance of rain. Sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Jefferson WI
 42.99°N 88.84°W (Elev. 843 ft)
Last Update:
1:41 pm CST Nov 9, 2026
Forecast Valid:
1pm CST Nov 9, 2026-6pm CST Nov 15, 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