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

Severe Thunderstorms and Flash Flooding for the Central U.S. through Tuesday; Dangerous East Coast Beach Conditions

Thunderstorms ahead of an approaching cold front will impact much of the Central U.S. through Tuesday. Severe thunderstorms and flash flooding are forecast for portions of the central/southern Plains and the Mississippi, Ohio, and Tennessee Valleys. Meanwhile, dangerous waves and rip currents will impact portions of the East Coast as tropical activity increases in the Atlantic. Read More >

Hazardous Weather Conditions

Current conditions at

Chippewa Valley Regional Airport (KEAU)

Lat: 44.87°NLon: 91.49°WElev: 886ft.

Fog/Mist

58°F

14°C

Humidity 100%
Wind Speed NE 7 mph
Barometer 29.94 in (1013.5 mb)
Dewpoint 58°F (14°C)
Visibility 0.75 mi
Last update 23 Sep 4:56 am CDT
Extended Forecast for

Altoona WI

Dense Fog Advisory September 23, 05:39am until September 23, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory September 23, 05:39am until September 23, 10:00am

    NOW until 10:00am Tue

    Dense Fog Advisory

  • Today

    High: 72 °F

    Areas Dense
    Fog then
    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 53. North northeast wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 10am. Otherwise, partly sunny, with a high near 71. Calm wind becoming north northeast around 5 mph in the morning.

    High: 71 °F

    Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Areas of fog after midnight. Otherwise, partly cloudy, with a low around 50. North northeast wind around 5 mph becoming calm.

    Low: 50 °F

    Mostly Clear
    then Areas
    Fog

  • Thursday

    Thursday: Areas of fog before 10am. Otherwise, sunny, with a high near 76. Calm wind becoming west around 5 mph in the afternoon.

    High: 76 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. West southwest wind around 5 mph becoming calm.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77. Calm wind becoming west northwest around 5 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56. Calm wind becoming west southwest around 5 mph after midnight.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Today
Areas of dense fog before 10am. Otherwise, mostly cloudy, with a high near 72. North northeast wind around 5 mph.
Tonight
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 53. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 71. Calm wind becoming north northeast around 5 mph in the morning.
Wednesday Night
Areas of fog after midnight. Otherwise, partly cloudy, with a low around 50. North northeast wind around 5 mph becoming calm.
Thursday
Areas of fog before 10am. Otherwise, sunny, with a high near 76. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 54. West southwest wind around 5 mph becoming calm.
Friday
Sunny, with a high near 77. Calm wind becoming west northwest around 5 mph.
Friday Night
Mostly clear, with a low around 56. Calm wind becoming west southwest around 5 mph after midnight.
Saturday
Sunny, with a high near 74. West northwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 49. West northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 75. Calm wind becoming south southwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 52. South wind around 5 mph becoming east after midnight.
Monday
Mostly sunny, with a high near 74. East wind around 5 mph becoming west northwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altoona WI
 44.8°N 91.44°W (Elev. 850 ft)
Last Update:
5:28 am CDT Sep 23, 2025
Forecast Valid:
5am CDT Sep 23, 2025-6pm CDT Sep 29, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation