National Weather Service Forecast for: Claymont DE
Issued by: National Weather Service Philadelphia, PA
Updated: 6:05 pm EST Dec 17, 2025
 
Overnight

Overnight: Patchy freezing fog after 3am. Mostly cloudy, with a low around 28. North wind around 5 mph.
Patchy
Freezing Fog

 Thursday

Thursday: Patchy fog between 9am and 10am. Patchy freezing fog before 9am. Otherwise, increasing clouds, with a high near 48. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Patchy
Freezing Fog
and Patchy
Fog then
Mostly Cloudy
 Thursday
Night
Thursday Night: Rain, with thunderstorms also possible after 4am. Temperature rising to around 56 by 3am. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Rain and
Breezy

 Friday

Friday: Showers likely and possibly a thunderstorm before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 57. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Showers
Likely and
Breezy

 Friday
Night
Friday Night: Mostly clear, with a low around 27. Breezy, with a west wind 10 to 20 mph, with gusts as high as 35 mph.
Mostly Clear
and Breezy
then Mostly
Clear
 Saturday

Saturday: Mostly sunny, with a high near 41.
Mostly Sunny


 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 36.
Mostly Cloudy


 Sunday

Sunday: Mostly sunny, with a high near 49.
Mostly Sunny


 Sunday
Night
Sunday Night: Mostly clear, with a low around 27.
Mostly Clear
Lo 28 °F Hi 48 °F Lo 45 °F⇑ Hi 57 °F Lo 27 °F Hi 41 °F Lo 36 °F Hi 49 °F Lo 27 °F

Wind Advisory
 

Overnight
 
 Patchy freezing fog after 3am. Mostly cloudy, with a low around 28. North wind around 5 mph.
Thursday
 
 Patchy fog between 9am and 10am. Patchy freezing fog before 9am. Otherwise, increasing clouds, with a high near 48. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Thursday Night
 
 Rain, with thunderstorms also possible after 4am. Temperature rising to around 56 by 3am. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
 
 Showers likely and possibly a thunderstorm before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 57. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
 
 Mostly clear, with a low around 27. Breezy, with a west wind 10 to 20 mph, with gusts as high as 35 mph.
Saturday
 
 Mostly sunny, with a high near 41.
Saturday Night
 
 Mostly cloudy, with a low around 36.
Sunday
 
 Mostly sunny, with a high near 49.
Sunday Night
 
 Mostly clear, with a low around 27.
Monday
 
 Sunny, with a high near 37.
Monday Night
 
 Partly cloudy, with a low around 28.
Tuesday
 
 A chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.
Tuesday Night
 
 Mostly cloudy, with a low around 35.
Wednesday
 
 Mostly sunny, with a high near 45.

 

Forecast from NOAA-NWS for Claymont DE.