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.

Freezing Fog

27°F

-3°C

Humidity 100%
Wind Speed Calm
Barometer 30.20 in
Dewpoint 27°F (-3°C)
Visibility 0.25 mi
Last update 4 Mar 6:45 am CST
Extended Forecast for

7 Miles NE Avalon WI

Dense Fog Advisory March 4, 07:01am until March 4, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory March 4, 07:01am until March 4, 09:00am

    NOW until 9:00am Wed

    Dense Fog Advisory

  • Today

    High: 53 °F

    Dense Fog
    then Partly
    Sunny

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 1am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 38. East wind around 5 mph.

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Rain and
    Patchy Fog

  • Thursday

    Thursday: Rain likely, mainly before noon. Patchy fog before noon. Otherwise, cloudy, with a high near 49. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain Likely
    and Patchy
    Fog then
    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 39. Southeast wind around 5 mph.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Rain and possibly a thunderstorm. High near 66. Southeast wind 10 to 15 mph becoming south in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 66 °F

    Rain

  • Friday Night

    Friday Night: Rain before 9pm, then rain and possibly a thunderstorm between 9pm and midnight, then rain after midnight. Low around 42. Southwest wind around 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain

  • Saturday

    Saturday: A 20 percent chance of rain before noon. Mostly cloudy, then gradually becoming sunny, with a high near 50. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 50 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. West wind 10 to 15 mph becoming southwest after midnight.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Today
Widespread dense fog, mainly before 8am. Otherwise, partly sunny, with a high near 53. Southeast wind 5 to 10 mph.
Tonight
A 50 percent chance of rain, mainly after 1am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 38. East wind around 5 mph.
Thursday
Rain likely, mainly before noon. Patchy fog before noon. Otherwise, cloudy, with a high near 49. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 39. Southeast wind around 5 mph.
Friday
Rain and possibly a thunderstorm. High near 66. Southeast wind 10 to 15 mph becoming south in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Rain before 9pm, then rain and possibly a thunderstorm between 9pm and midnight, then rain after midnight. Low around 42. Southwest wind around 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A 20 percent chance of rain before noon. Mostly cloudy, then gradually becoming sunny, with a high near 50. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 33. West wind 10 to 15 mph becoming southwest after midnight.
Sunday
Mostly sunny, with a high near 59. Breezy.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 67.
Monday Night
A 20 percent chance of rain and thunderstorms. Mostly clear, with a low around 48.
Tuesday
Rain likely. Partly sunny, with a high near 65. Breezy. Chance of precipitation is 70%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NE Avalon WI
 42.72°N 88.74°W (Elev. 997 ft)
Last Update:
5:42 am CST Mar 4, 2026
Forecast Valid:
7am CST Mar 4, 2026-6pm CDT Mar 10, 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