Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >

Current conditions at

Chippewa Valley Regional Airport (KEAU)

Lat: 44.87°NLon: 91.49°WElev: 886ft.

A Few Clouds

62°F

17°C

Humidity 90%
Wind Speed Calm
Barometer 30.03 in (1016.7 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Aug 10:56 pm CDT
Extended Forecast for

Altoona WI

  • Tonight

    Tonight: Patchy fog before 3am, then patchy fog after 4am.  Otherwise, mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am.  Otherwise, sunny, with a high near 83. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 1am, then a slight chance of showers and thunderstorms between 1am and 4am.  Mostly cloudy, with a low around 64. Southwest wind around 5 mph.  Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers after 1pm.  Partly sunny, with a high near 79. West northwest wind 5 to 10 mph.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 78. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am.  Partly cloudy, with a low around 60. South southwest wind around 5 mph.

    Low: 60 °F

    Mostly Clear
    then Chance
    Showers

Detailed Forecast

Tonight
Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 59. Calm wind.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 83. Light and variable wind becoming west 5 to 10 mph in the morning.
Monday Night
A slight chance of showers before 1am, then a slight chance of showers and thunderstorms between 1am and 4am. Mostly cloudy, with a low around 64. Southwest wind around 5 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 79. West northwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 78. Calm wind becoming west northwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 60. South southwest wind around 5 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. West southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61. West wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 80. North northwest wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 58. North wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 80. Calm wind becoming southeast around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Altoona WI
 44.8°N 91.44°W (Elev. 850 ft)
8:26 pm CDT Aug 16, 2026
11pm CDT Aug 16, 2026-6pm CDT Aug 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database