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

32°F

0°C

Humidity 100%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 32°F (0°C)
Visibility 0.25 mi
Last update 4 Mar 2:15 am CST
Extended Forecast for

3 Miles NNE Capron IL

  • Overnight

    Overnight: Widespread fog. Otherwise, cloudy, with a low around 30. Northeast wind around 5 mph.

    Low: 30 °F

    Fog

  • Wednesday

    Wednesday: Widespread fog, mainly before 7am. Otherwise, mostly cloudy, with a high near 50. East southeast wind 5 to 10 mph.

    High: 50 °F

    Fog then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly after 1am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 40. East northeast wind around 5 mph.

    Low: 40 °F

    Patchy Fog
    then Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before noon. Areas of fog. Otherwise, cloudy, with a high near 47. East northeast wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 47 °F

    Showers
    Likely and
    Areas Fog

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 3am. Patchy fog. Otherwise, mostly cloudy, with a low around 41. Southeast wind around 5 mph.

    Low: 41 °F

    Patchy Fog
    then Slight
    Chance
    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. Chance of precipitation is 90%.

    High: 68 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: A chance of showers, then showers and possibly a thunderstorm after 9pm. Low around 45. Chance of precipitation is 90%.

    Low: 45 °F

    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Saturday Night

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

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Overnight
Widespread fog. Otherwise, cloudy, with a low around 30. Northeast wind around 5 mph.
Wednesday
Widespread fog, mainly before 7am. Otherwise, mostly cloudy, with a high near 50. East southeast wind 5 to 10 mph.
Wednesday Night
A 50 percent chance of showers, mainly after 1am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 40. East northeast wind around 5 mph.
Thursday
Showers likely, mainly before noon. Areas of fog. Otherwise, cloudy, with a high near 47. East northeast wind 5 to 10 mph. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers after 3am. Patchy fog. Otherwise, mostly cloudy, with a low around 41. Southeast wind around 5 mph.
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. Chance of precipitation is 90%.
Friday Night
A chance of showers, then showers and possibly a thunderstorm after 9pm. Low around 45. Chance of precipitation is 90%.
Saturday
Partly sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Mostly sunny, with a high near 59. Breezy.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Showers likely. Partly sunny, with a high near 67. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Capron IL
 42.44°N 88.73°W
Last Update:
1:56 am CST Mar 4, 2026
Forecast Valid:
2am 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