National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy

70°F

21°C

Humidity 78%
Wind Speed NW 6 mph
Barometer 30.06 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 17 Aug 8:45 am CDT
Extended Forecast for

Edgerton WI

  • Today

    Today: Mostly sunny, with a high near 79. Northwest wind around 5 mph.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Southwest wind around 5 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Isolated showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 79. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Mostly Sunny
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 61. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. Calm wind becoming north around 5 mph in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 79. Northwest wind around 5 mph.
Tonight
Mostly clear, with a low around 60. Southwest wind around 5 mph.
Tuesday
Isolated showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 79. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 61. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny, with a high near 76. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 56. Calm wind.
Thursday
Mostly sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 57. Calm wind.
Friday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 77.
Friday Night
A 40 percent chance of showers. Partly cloudy, with a low around 61.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Edgerton WI
 42.82°N 89.06°W (Elev. 869 ft)
Last Update:
8:47 am CDT Aug 17, 2026
Forecast Valid:
9am CDT Aug 17, 2026-6pm CDT Aug 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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