Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Fair

88°F

31°C

Humidity 39%
Wind Speed NW 12 mph
Barometer 29.92 in (1013.0 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 19 Aug 2:51 pm EDT
Extended Forecast for

3 Miles WSW Wilmington, New Castle County Airport DE

Flood Watch August 20, 12:00pm until August 21, 02:00am
Click here for hazard details and duration
Flood Watch
  • Tonight

    Tonight: Partly cloudy, with a low around 69. West wind around 5 mph becoming calm  in the evening.

    Low: 69 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 83. Calm wind becoming southeast around 5 mph in the morning.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 83 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before midnight, then a slight chance of showers between midnight and 2am.  Mostly cloudy, with a low around 65. North wind around 5 mph.  Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 65 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers after 2pm.  Partly sunny, with a high near 81. Northeast wind around 5 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 81 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers.  Mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm.  Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 67 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 80. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 83. Chance of precipitation is 40%.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. West wind around 5 mph becoming calm in the evening.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 83. Calm wind becoming southeast around 5 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Showers and thunderstorms likely before midnight, then a slight chance of showers between midnight and 2am. Mostly cloudy, with a low around 65. North wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 81. Northeast wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers. Mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
A chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Wilmington, New Castle County Airport DE
 39.66°N 75.65°W (Elev. 49 ft)
2:16 pm EDT Aug 19, 2026
3pm EDT Aug 19, 2026-6pm EDT Aug 26, 2026
 
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Additional Resources

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