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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Light Drizzle

41°F

5°C

Humidity 81%
Wind Speed E 5 mph
Barometer 30.02 in
Dewpoint 36°F (2°C)
Visibility 5.00 mi
Wind Chill38°F (3°C)
Last update 4 Mar 9:55 pm CST
Extended Forecast for

2 Miles NW Alden IL

Dense Fog Advisory March 4, 10:06pm until March 5, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 4, 10:06pm until March 5, 12:00pm

    NOW until 12:00pm Thu

    Dense Fog Advisory

  • Tonight

    Low: 38 °F

    Patchy Fog
    then Isolated
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Scattered showers, mainly before 9am. Patchy fog. Otherwise, cloudy, with a high near 43. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 43 °F

    Scattered
    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: Isolated showers after 3am. Patchy fog. Otherwise, cloudy, with a low around 40. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Patchy Fog
    then Isolated
    Showers and
    Patchy Fog

  • Friday

    Friday: A chance of showers and thunderstorms before 9am, then showers and possibly a thunderstorm between 9am and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog before noon. High near 68. Southeast wind 10 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.

    High: 68 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 9pm, then showers and possibly a thunderstorm between 9pm and 3am, then showers after 3am. Low around 48. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 48 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before noon. Partly sunny, with a high near 54.

    High: 54 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 58. Breezy.

    High: 58 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Tonight
Isolated showers after midnight. Patchy fog. Otherwise, cloudy, with a low around 38. Northeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.
Thursday
Scattered showers, mainly before 9am. Patchy fog. Otherwise, cloudy, with a high near 43. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.
Thursday Night
Isolated showers after 3am. Patchy fog. Otherwise, cloudy, with a low around 40. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms before 9am, then showers and possibly a thunderstorm between 9am and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog before noon. High near 68. Southeast wind 10 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Friday Night
A chance of showers and thunderstorms before 9pm, then showers and possibly a thunderstorm between 9pm and 3am, then showers after 3am. Low around 48. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers before noon. Partly sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Mostly sunny, with a high near 58. Breezy.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 68.
Monday Night
A chance of showers. Partly cloudy, with a low around 46.
Tuesday
Showers likely. Mostly cloudy, with a high near 59. Breezy.
Tuesday Night
Rain and snow showers. Cloudy, with a low around 32.
Wednesday
A chance of rain and snow showers. Mostly cloudy, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Alden IL
 42.48°N 88.55°W
Last Update:
9:56 pm CST Mar 4, 2026
Forecast Valid:
10pm CST Mar 4, 2026-6pm CDT Mar 11, 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