Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

John F Kennedy Memorial Airport (KASX)

Lat: 46.55°NLon: 90.92°WElev: 814ft.

Fair

54°F

12°C

Humidity 80%
Wind Speed SW 5 mph
Barometer 29.98 in (1015.5 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 19 Aug 9:53 pm CDT
Extended Forecast for

4 Miles E Mellen WI

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Calm wind becoming south around 5 mph after midnight.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Mostly cloudy, with a high near 75. South wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am.  Low around 55. South wind around 5 mph becoming southwest after midnight.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers, mainly after 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 73. North wind around 5 mph.

    High: 73 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am.  Partly cloudy, with a low around 52. Calm wind becoming west around 5 mph.

    Low: 52 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 74. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47. North wind around 5 mph becoming calm  in the evening.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. Calm wind becoming north around 5 mph in the afternoon.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47. Calm wind becoming south around 5 mph after midnight.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 47. Calm wind becoming south around 5 mph after midnight.
Thursday
Showers likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 75. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am. Low around 55. South wind around 5 mph becoming southwest after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers, mainly after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 73. North wind around 5 mph.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 52. Calm wind becoming west around 5 mph.
Saturday
Mostly sunny, with a high near 74. North wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 47. North wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 73. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 47. Calm wind becoming south around 5 mph after midnight.
Monday
Mostly sunny, with a high near 77. South wind around 5 mph.
Monday Night
A chance of showers. Mostly cloudy, with a low around 55. South wind around 5 mph.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79. Southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 56. Northwest wind around 5 mph.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 78. North wind 5 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Mellen WI
 46.32°N 90.59°W
9:47 pm CDT Aug 19, 2026
10pm CDT Aug 19, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database