National Weather Service Forecast for: Seaford DE
Issued by: National Weather Service Philadelphia, PA
Updated: 4:09 pm EDT Sep 12, 2026
 
Tonight

Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 70. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers

 Sunday

Sunday: Showers and thunderstorms, mainly before noon. High near 85. West wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers then
Slight Chance
T-storms
 Sunday
Night
Sunday Night: Mostly clear, with a low around 69. Calm wind becoming southwest around 5 mph after midnight.
Mostly Clear

 Monday

Monday: Mostly sunny, with a high near 79. North wind 10 to 15 mph.
Mostly Sunny

 Monday
Night
Monday Night: Mostly clear, with a low around 56. North wind 5 to 10 mph.
Mostly Clear

 Tuesday

Tuesday: Sunny, with a high near 79.
Sunny

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 58.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 80.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 61.
Mostly Clear
Lo 70 °F Hi 85 °F Lo 69 °F Hi 79 °F Lo 56 °F Hi 79 °F Lo 58 °F Hi 80 °F Lo 61 °F

 

Tonight
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 70. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
 
 Showers and thunderstorms, mainly before noon. High near 85. West wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
 
 Mostly clear, with a low around 69. Calm wind becoming southwest around 5 mph after midnight.
Monday
 
 Mostly sunny, with a high near 79. North wind 10 to 15 mph.
Monday Night
 
 Mostly clear, with a low around 56. North wind 5 to 10 mph.
Tuesday
 
 Sunny, with a high near 79.
Tuesday Night
 
 Mostly clear, with a low around 58.
Wednesday
 
 Sunny, with a high near 80.
Wednesday Night
 
 Mostly clear, with a low around 61.
Thursday
 
 Sunny, with a high near 84.
Thursday Night
 
 Mostly clear, with a low around 64.
Friday
 
 Mostly sunny, with a high near 85.
Friday Night
 
 Partly cloudy, with a low around 65.
Saturday
 
 Partly sunny, with a high near 82.

 

Forecast from NOAA-NWS for Seaford DE.