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

Hot Temperatures in the Northwest U.S.; Excessive Rainfall Potential in the Southwest U.S.

Hot to extremely hot daytime temperatures remain in place across coastal southern California and the interior Northwest, with the Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring a marginal to slight risk of excessive rainfall across the southwest U.S. this week. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

63°F

17°C

Humidity 77%
Wind Speed W 6 mph
Barometer 29.88 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 3 Sep 2:15 am CDT
Extended Forecast for

Edgerton WI

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Cloudy, with a low around 59. Southwest wind around 5 mph.

    Low: 59 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 2pm. Cloudy, with a high near 69. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. Northwest wind 5 to 10 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 64. West wind 5 to 10 mph.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 50. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 61. West wind around 15 mph.

    High: 61 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. West wind 5 to 10 mph.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64. West wind 5 to 15 mph.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Cloudy, with a low around 59. Southwest wind around 5 mph.
Wednesday
Showers and thunderstorms likely, mainly before 2pm. Cloudy, with a high near 69. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 42. Northwest wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 64. West wind 5 to 10 mph.
Thursday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 50. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Mostly sunny, with a high near 61. West wind around 15 mph.
Friday Night
Mostly clear, with a low around 44. West wind 5 to 10 mph.
Saturday
Sunny, with a high near 64. West wind 5 to 15 mph.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 45.
Monday
Partly sunny, with a high near 69.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 52.
Tuesday
A 20 percent chance of showers. Mostly cloudy, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Edgerton WI
 42.82°N 89.09°W (Elev. 912 ft)
Last Update:
1:24 am CDT Sep 3, 2025
Forecast Valid:
2am CDT Sep 3, 2025-6pm CDT Sep 9, 2025
 
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