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.

Fair

43°F

6°C

Humidity 49%
Wind Speed W 13 G 17 mph
Barometer 30.01 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 18 Apr 7:45 pm CDT
Extended Forecast for

2 Miles N Janesville WI

  • Tonight

    Tonight: Mostly clear, with a low around 30. West wind 5 to 15 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of snow showers before 10am, then a slight chance of rain showers. Mostly sunny, with a high near 48. Northwest wind 5 to 15 mph. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. Northwest wind 5 to 10 mph becoming light in the evening.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 52. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41. South wind around 10 mph.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. Southwest wind around 10 mph.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44. West wind around 5 mph becoming northeast after midnight.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 72. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 30. West wind 5 to 15 mph.
Sunday
A slight chance of snow showers before 10am, then a slight chance of rain showers. Mostly sunny, with a high near 48. Northwest wind 5 to 15 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 27. Northwest wind 5 to 10 mph becoming light in the evening.
Monday
Sunny, with a high near 52. Light and variable wind becoming south 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 41. South wind around 10 mph.
Tuesday
Mostly sunny, with a high near 70. Southwest wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 44. West wind around 5 mph becoming northeast after midnight.
Wednesday
Sunny, with a high near 72. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 68.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 41.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Janesville WI
 42.71°N 89°W (Elev. 892 ft)
Last Update:
4:46 pm CDT Apr 18, 2026
Forecast Valid:
8pm CDT Apr 18, 2026-6pm CDT Apr 25, 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