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.

Partly Cloudy

81°F

27°C

Humidity 89%
Wind Speed S 12 G 16 mph
Barometer 29.82 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 30 Jun 4:35 am CDT
Extended Forecast for

Appleton WI

Extreme Heat Warning June 30, 04:57am until June 30, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 30, 04:57am until June 30, 07:00pm

    NOW until 7:00pm Tue

    Extreme Heat Warning

  • Overnight

    Low: 77 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 10 percent chance of showers before 7am. Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 95 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 76 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 93. Heat index values as high as 101. Southwest wind 6 to 13 mph, with gusts as high as 24 mph.

    High: 93 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 73. Southwest wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    Low: 73 °F

    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 90.

    High: 90 °F

    Partly Sunny
    then Chance
    T-storms

  • 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 71. Chance of precipitation is 60%.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 89. Chance of precipitation is 70%.

    High: 89 °F

    Showers
    Likely

Detailed Forecast

Overnight
A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 77. South southwest wind around 9 mph, with gusts as high as 18 mph.
Tuesday
A 10 percent chance of showers before 7am. Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 93. Heat index values as high as 101. Southwest wind 6 to 13 mph, with gusts as high as 24 mph.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 73. Southwest wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 90.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 89. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Independence Day
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Monday
Mostly 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 88.4°W (Elev. 751 ft)
Last Update:
3:01 am CDT Jun 30, 2026
Forecast Valid:
4am CDT Jun 30, 2026-6pm CDT Jul 6, 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