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

Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy

77°F

25°C

Humidity 44%
Wind Speed E 6 mph
Barometer 30.30 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 2 Aug 4:45 pm CDT
Extended Forecast for

4 Miles WSW Fort Atkinson WI

  • Tonight

    Tonight: Areas of smoke. Partly cloudy, with a low around 54. Southeast wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Areas Smoke

  • Sunday

    Sunday: Areas of smoke. Mostly sunny, with a high near 80. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 80 °F

    Areas Smoke

  • Sunday Night

    Sunday Night: Areas of smoke before 8pm. Mostly clear, with a low around 57. East wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Areas Smoke
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. East wind around 5 mph becoming calm after midnight.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. East wind around 5 mph becoming calm after midnight.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Calm wind becoming south around 5 mph in the morning.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of smoke. Partly cloudy, with a low around 54. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Areas of smoke. Mostly sunny, with a high near 80. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
Areas of smoke before 8pm. Mostly clear, with a low around 57. East wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 61. East wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 82. Light east wind becoming southeast 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 63. East wind around 5 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 85. Calm wind becoming south around 5 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Friday
Mostly sunny, with a high near 87.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Fort Atkinson WI
 42.9°N 88.93°W (Elev. 774 ft)
Last Update:
4:24 pm CDT Aug 2, 2025
Forecast Valid:
4pm CDT Aug 2, 2025-6pm CDT Aug 9, 2025
 
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Additional Resources

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Chance of Precipitation