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Tropical Storm Bertha in the Gulf; Severe Weather in the East on Tuesday

Tropical Storm Bertha could bring tropical storm conditions to portions of the Florida Panhandle and Alabama coast through Wednesday, where a Tropical Storm Watch and Storm Surge Watch is in effect. Numerous severe thunderstorms with heavy rainfall are expected from the Ohio Valley into the Mid-Atlantic and Northeast Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

5 Miles SSW Janesville WI

  • Today

    Today: Increasing clouds, with a high near 81. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 81 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 54. North wind 5 to 15 mph.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. North wind 5 to 10 mph.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. North wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. Calm wind becoming south around 5 mph in the morning.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. South wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 81. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 54. North wind 5 to 15 mph.
Wednesday
Mostly sunny, with a high near 75. North wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 52. North wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 80. Calm wind becoming south around 5 mph in the morning.
Friday Night
Mostly clear, with a low around 57. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 64.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
3:32 am CDT Jul 21, 2026
Forecast Valid:
4am CDT Jul 21, 2026-6pm CDT Jul 27, 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