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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

68°F

20°C

Humidity 43%
Wind Speed N 10 mph
Barometer 30.19 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 4 Oct 12:45 pm CDT
Extended Forecast for

5 Miles SSW Janesville WI

  • This Afternoon

    This Afternoon: Sunny, with a high near 68. Northwest wind around 10 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 39. Northwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 64. Calm wind becoming northeast around 5 mph.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. Calm wind becoming south around 5 mph after midnight.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. Southwest wind 5 to 15 mph.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. Light west wind increasing to 5 to 10 mph in the morning.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. West wind around 5 mph becoming calm after midnight.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 68. Northwest wind around 10 mph.
Tonight
Clear, with a low around 39. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 64. Calm wind becoming northeast around 5 mph.
Monday Night
Mostly clear, with a low around 45. Calm wind becoming south around 5 mph after midnight.
Tuesday
Sunny, with a high near 70. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 51. Southwest wind 5 to 15 mph.
Wednesday
Mostly sunny, with a high near 71. Light west wind increasing to 5 to 10 mph in the morning.
Wednesday Night
Mostly clear, with a low around 46. West wind around 5 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
1:21 pm CDT Oct 4, 2026
Forecast Valid:
1pm CDT Oct 4, 2026-6pm CDT Oct 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