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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Overcast

72°F

22°C

Humidity 84%
Wind Speed E 3 mph
Barometer 30.05 in (1017.4 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 22 Aug 2:54 am EDT
Extended Forecast for

Claymont DE

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 67. East wind around 5 mph.

    Low: 67 °F

    Patchy Fog

  • Saturday

    Saturday: Showers likely, mainly after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 76. Southeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely after 2am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 67. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 82. West wind 5 to 10 mph.

    High: 82 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. West wind around 5 mph.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 67. East wind around 5 mph.
Saturday
Showers likely, mainly after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 76. Southeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A chance of showers and thunderstorms, then showers likely after 2am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 67. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 82. West wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 63. West wind around 5 mph.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 85.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Thursday
Showers likely. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Claymont DE
 39.81°N 75.44°W (Elev. 52 ft)
Last Update:
2:43 am EDT Aug 22, 2026
Forecast Valid:
3am EDT Aug 22, 2026-6pm EDT Aug 28, 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