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

Hazardous Weather Conditions

Current conditions at

Appleton-Outagamie (KATW)

Lat: 44.26°NLon: 88.52°WElev: 869ft.

Overcast

82°F

28°C

Humidity 84%
Wind Speed S 10 mph
Barometer 29.88 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 29 Jun 10:45 am CDT
Extended Forecast for

Appleton WI

Extreme Heat Warning June 29, 12:00pm until June 30, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: Mostly sunny and hot, with a high near 94. Heat index values as high as 109. South wind 11 to 13 mph, with gusts as high as 23 mph.

    High: 94 °F

    Hot

  • Tonight

    Tonight: A slight chance of showers before 3am, then a slight chance of showers after 5am. Increasing clouds, with a low around 79. South southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 79 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 77. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 95. South southwest wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 95 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely after 1am. Partly cloudy, with a low around 76. Chance of precipitation is 60%.

    Low: 76 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 94. Chance of precipitation is 30%.

    High: 94 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 60%.

    High: 88 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny and hot, with a high near 94. Heat index values as high as 109. South wind 11 to 13 mph, with gusts as high as 23 mph.
Tonight
A slight chance of showers before 3am, then a slight chance of showers after 5am. Increasing clouds, with a low around 79. South southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 77. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Wednesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 95. South southwest wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely after 1am. Partly cloudy, with a low around 76. Chance of precipitation is 60%.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 94. Chance of precipitation is 30%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Independence Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Appleton WI
 44.27°N 88.37°W (Elev. 712 ft)
Last Update:
10:56 am CDT Jun 29, 2026
Forecast Valid:
11am CDT Jun 29, 2026-6pm CDT Jul 5, 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