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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fog/Mist

37°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 37°F (3°C)
Visibility 0.75 mi
Last update 5 Mar 5:15 am CST
Extended Forecast for

2 Miles W Darien WI

Dense Fog Advisory March 5, 05:37am until March 5, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 5, 05:37am until March 5, 12:00pm

    NOW until 12:00pm Thu

    Dense Fog Advisory

  • Overnight

    Low: 39 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Thursday

    Thursday: A 30 percent chance of rain, mainly before 9am. Patchy fog before 3pm, then patchy fog after 4pm. Otherwise, cloudy, with a high near 48. Northeast wind around 5 mph.

    High: 48 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday Night

    Thursday Night: Patchy fog. Otherwise, cloudy, with a low around 39. Calm wind becoming southeast around 5 mph after midnight.

    Low: 39 °F

    Patchy Fog

  • Friday

    Friday: Showers before 9am, then showers and possibly a thunderstorm between 9am and noon, then a chance of showers and thunderstorms after noon. High near 68. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 68 °F

    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 49. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers
    Likely then
    Showers and
    Breezy

  • Saturday

    Saturday: A 20 percent chance of showers before noon. Partly sunny, with a high near 57. Breezy, with a west wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 57 °F

    Breezy.
    Slight Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. West wind 5 to 10 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 59 °F

    Sunny and
    Breezy

Detailed Forecast

Overnight
A 20 percent chance of rain. Patchy fog. Otherwise, cloudy, with a low around 39. Northeast wind around 5 mph.
Thursday
A 30 percent chance of rain, mainly before 9am. Patchy fog before 3pm, then patchy fog after 4pm. Otherwise, cloudy, with a high near 48. Northeast wind around 5 mph.
Thursday Night
Patchy fog. Otherwise, cloudy, with a low around 39. Calm wind becoming southeast around 5 mph after midnight.
Friday
Showers before 9am, then showers and possibly a thunderstorm between 9am and noon, then a chance of showers and thunderstorms after noon. High near 68. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and possibly a thunderstorm. Low around 49. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 20 percent chance of showers before noon. Partly sunny, with a high near 57. Breezy, with a west wind 10 to 20 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 32. West wind 5 to 10 mph.
Sunday
Sunny, with a high near 59. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 68.
Monday Night
A 20 percent chance of rain. Mostly clear, with a low around 43.
Tuesday
Rain likely. Mostly sunny, with a high near 65. Chance of precipitation is 70%.
Tuesday Night
Rain. Low around 36. Chance of precipitation is 80%.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 49. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Darien WI
 42.59°N 88.75°W (Elev. 889 ft)
Last Update:
5:07 am CST Mar 5, 2026
Forecast Valid:
5am CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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