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.

Fair

45°F

7°C

Humidity 57%
Wind Speed NW 3 mph
Barometer 29.84 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 5 May 9:55 pm CDT
Extended Forecast for

Edgerton WISimilar City Names

Frost Advisory May 6, 01:00am until May 6, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, partly cloudy, with a low around 34. Northwest wind around 5 mph.

    Low: 34 °F

    Mostly Cloudy
    then Areas
    Frost

  • Wednesday

    Wednesday: Areas of frost before 7am. Otherwise, partly sunny, with a high near 56. Northwest wind 5 to 15 mph.

    High: 56 °F

    Areas Frost
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Widespread frost, mainly between 2am and 5am. Otherwise, partly cloudy, with a low around 34. Northwest wind 5 to 10 mph becoming light west after midnight.

    Low: 34 °F

    Partly Cloudy
    then Frost

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm. Areas of frost before 7am. Otherwise, mostly sunny, with a high near 60. West wind 5 to 15 mph.

    High: 60 °F

    Areas Frost
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. West wind 5 to 10 mph becoming south in the evening.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 64. Southwest wind 5 to 10 mph.

    High: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44. Southwest wind around 5 mph.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers

Detailed Forecast

Tonight
Areas of frost after 4am. Otherwise, partly cloudy, with a low around 34. Northwest wind around 5 mph.
Wednesday
Areas of frost before 7am. Otherwise, partly sunny, with a high near 56. Northwest wind 5 to 15 mph.
Wednesday Night
Widespread frost, mainly between 2am and 5am. Otherwise, partly cloudy, with a low around 34. Northwest wind 5 to 10 mph becoming light west after midnight.
Thursday
A 20 percent chance of showers after 1pm. Areas of frost before 7am. Otherwise, mostly sunny, with a high near 60. West wind 5 to 15 mph.
Thursday Night
Partly cloudy, with a low around 42. West wind 5 to 10 mph becoming south in the evening.
Friday
A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 64. Southwest wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 44. Southwest wind around 5 mph.
Saturday
Mostly sunny, with a high near 71. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 46.
Sunday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 62.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 64.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 43.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Edgerton WISimilar City Names
 42.84°N 89.08°W (Elev. 866 ft)
Last Update:
8:37 pm CDT May 5, 2026
Forecast Valid:
10pm CDT May 5, 2026-6pm CDT May 12, 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