Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Plains to the Upper Midwest

A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S and linger through much of the work week. Numerous daily record highs and warm lows are likely. Severe thunderstorms are possible from the southern Plains through the Upper Mississippi Valley. Fire weather concerns are expected to persist across the Four Corners region. Read More >

Current conditions at

Appleton-Outagamie (KATW)

Lat: 44.26°NLon: 88.52°WElev: 869ft.

Fair

81°F

27°C

Humidity 74%
Wind Speed SW 12 mph
Barometer 29.91 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 23 Jun 2:15 am CDT
Extended Forecast for

Neenah WI

Heat Advisory June 23, 02:24am until June 23, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 23, 02:24am until June 23, 07:00pm

    NOW until 7:00pm Mon

    Heat Advisory

  • Overnight

    Low: 78 °F

    Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Some of the storms could be severe.  Increasing clouds and hot, with a high near 94. Heat index values as high as 102. Southwest wind 14 to 16 mph, with gusts as high as 26 mph.

    High: 94 °F

    Sunny then
    Severe
    Thunderstorms

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could be severe and produce heavy rainfall.  Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 71. West southwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Severe
    Thunderstorms
    and Patchy
    Fog

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 73. West northwest wind 5 to 8 mph becoming east in the afternoon.

    High: 73 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely after 10pm.  Mostly cloudy, with a low around 61. East wind 6 to 8 mph.  Chance of precipitation is 60%.

    Low: 61 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 4pm.  Mostly cloudy, with a high near 74. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 10pm, then showers and thunderstorms likely between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    T-storms
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm.  High near 78. Chance of precipitation is 80%.

    High: 78 °F

    Showers

Detailed Forecast

Overnight
Clear, with a low around 78. South southwest wind around 13 mph, with gusts as high as 23 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Some of the storms could be severe. Increasing clouds and hot, with a high near 94. Heat index values as high as 102. Southwest wind 14 to 16 mph, with gusts as high as 26 mph.
Monday Night
Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could be severe and produce heavy rainfall. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 71. West southwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 73. West northwest wind 5 to 8 mph becoming east in the afternoon.
Tuesday Night
A chance of showers and thunderstorms, then showers likely after 10pm. Mostly cloudy, with a low around 61. East wind 6 to 8 mph. Chance of precipitation is 60%.
Wednesday
Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 10pm, then showers and thunderstorms likely between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Thursday
Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Friday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 65.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Neenah WI
 44.19°N 88.49°W (Elev. 764 ft)
2:11 am CDT Jun 23, 2025
2am CDT Jun 23, 2025-6pm CDT Jun 29, 2025
 
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Additional Resources

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