Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

72°F

22°C

Humidity 100%
Wind Speed S 9 mph
Barometer 30.00 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 25 Jul 12:45 pm CDT
Extended Forecast for

5 Miles S Afton WI

Heat Advisory July 26, 12:00pm until July 26, 09:00pm
Click here for hazard details and duration
Heat Advisory
  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 83. Southwest wind around 10 mph.

    High: 83 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 5am.  Otherwise, increasing clouds, with a low around 68. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 68 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, partly sunny and hot, with a high near 92. Heat index values as high as 102. Light south wind becoming southwest 10 to 15 mph in the morning.

    High: 92 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 72. Southwest wind 5 to 10 mph.  Chance of precipitation is 50%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm.  Mostly sunny and hot, with a high near 92. Southwest wind 10 to 15 mph.  Chance of precipitation is 30%.

    High: 92 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. West wind 5 to 10 mph becoming north after midnight.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. North wind 5 to 10 mph.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 83. Southwest wind around 10 mph.
Tonight
Patchy fog after 5am. Otherwise, increasing clouds, with a low around 68. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Patchy fog before 8am. Otherwise, partly sunny and hot, with a high near 92. Heat index values as high as 102. Light south wind becoming southwest 10 to 15 mph in the morning.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Southwest wind 5 to 10 mph. Chance of precipitation is 50%.
Monday
A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Mostly sunny and hot, with a high near 92. Southwest wind 10 to 15 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 68. West wind 5 to 10 mph becoming north after midnight.
Tuesday
Mostly sunny, with a high near 86. North wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Afton WI
 42.63°N 89.1°W (Elev. 823 ft)
1:02 pm CDT Jul 25, 2026
1pm CDT Jul 25, 2026-6pm CDT Jul 31, 2026
 
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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