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.

Overcast

77°F

25°C

Humidity 89%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Aug 5:45 pm CDT
Extended Forecast for

Milton WISimilar City Names

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms. Partly sunny, with a high near 80. Southeast wind around 5 mph. Chance of precipitation is 20%.

    High: 80 °F

    Isolated
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 70. Southeast wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers before 8am. Mostly cloudy, with a high near 82. Northwest wind 5 to 15 mph.

    High: 82 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. Northwest wind 5 to 10 mph.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. Calm wind becoming southwest around 5 mph after midnight.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Southwest wind 5 to 10 mph.

    High: 80 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. West wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 75.

    High: 75 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms. Partly sunny, with a high near 80. Southeast wind around 5 mph. Chance of precipitation is 20%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 70. Southeast wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers before 8am. Mostly cloudy, with a high near 82. Northwest wind 5 to 15 mph.
Sunday Night
Partly cloudy, with a low around 61. Northwest wind 5 to 10 mph.
Monday
Sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 60. Calm wind becoming southwest around 5 mph after midnight.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Southwest wind 5 to 10 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. West wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 56.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 75.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 58.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Milton WISimilar City Names
 42.77°N 88.94°W (Elev. 896 ft)
Last Update:
4:33 pm CDT Aug 15, 2026
Forecast Valid:
5pm CDT Aug 15, 2026-6pm CDT Aug 22, 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