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

Appleton-Outagamie (KATW)

Lat: 44.26°NLon: 88.52°WElev: 869ft.

Mostly Cloudy

77°F

25°C

Humidity 79%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 2 Sep 11:45 am CDT
Extended Forecast for

Appleton WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 83. Heat index values as high as 86. Light and variable wind becoming south southwest around 5 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between midnight and 2am. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 20%.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms before 4pm, then a chance of thunderstorms after 5pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 81. Heat index values as high as 85. East wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. East wind 3 to 5 mph. Chance of precipitation is 70%.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 83. Southeast wind 3 to 5 mph. Chance of precipitation is 40%.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 80.

    High: 80 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 80.

    High: 80 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 83. Heat index values as high as 86. Light and variable wind becoming south southwest around 5 mph.
Tonight
A slight chance of showers and thunderstorms between midnight and 2am. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms before 4pm, then a chance of thunderstorms after 5pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 81. Heat index values as high as 85. East wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. East wind 3 to 5 mph. Chance of precipitation is 70%.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 83. Southeast wind 3 to 5 mph. Chance of precipitation is 40%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 80.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.
Sunday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 80.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Labor Day
A 20 percent chance of showers. Mostly cloudy, with a high near 77.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Appleton WI
 44.25°N 88.4°W (Elev. 755 ft)
Last Update:
12:21 pm CDT Sep 2, 2026
Forecast Valid:
12pm CDT Sep 2, 2026-6pm CDT Sep 8, 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