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.

Fog

57°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 30.14 in
Dewpoint 57°F (14°C)
Visibility 0.25 mi
Last update 28 Aug 6:45 am CDT
Extended Forecast for

2 Miles SW Avalon WI

  • Today

    Today: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Calm wind becoming south around 5 mph after midnight.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers after 2pm. Increasing clouds, with a high near 78. South wind 5 to 10 mph.

    High: 78 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 66. South wind 10 to 15 mph.

    Low: 66 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 84. South wind around 15 mph. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 10 mph.

    Low: 69 °F

    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86. Southwest wind around 10 mph.

    High: 86 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. South wind 5 to 10 mph.

    Low: 70 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 59. Calm wind becoming south around 5 mph after midnight.
Saturday
A 50 percent chance of showers after 2pm. Increasing clouds, with a high near 78. South wind 5 to 10 mph.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 66. South wind 10 to 15 mph.
Sunday
A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 84. South wind around 15 mph. Chance of precipitation is 20%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 10 mph.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86. Southwest wind around 10 mph.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. South wind 5 to 10 mph.
Tuesday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 86.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Avalon WI
 42.64°N 88.86°W (Elev. 991 ft)
Last Update:
6:36 am CDT Aug 28, 2026
Forecast Valid:
7am CDT Aug 28, 2026-6pm CDT Sep 3, 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