National Weather Service Forecast for: Clayton DE
Issued by: National Weather Service Philadelphia, PA
Updated: 4:07 am EDT Jun 22, 2026
 
Overnight

Overnight: A slight chance of showers. Cloudy, with a low around 65. East wind around 5 mph. Chance of precipitation is 20%.
Slight Chance
Showers

 Monday

Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5pm. Some of the storms could be severe and produce heavy rainfall. High near 89. East wind 10 to 15 mph becoming south in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Slight Chance
Showers then
Severe
T-Storms
 Monday
Night
Monday Night: Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could be severe and produce heavy rainfall. Low around 68. South wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Severe
T-Storms
then Heavy
Rain
 Tuesday

Tuesday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm. Partly sunny, with a high near 80. North wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
Showers

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 62. Northwest wind around 10 mph, with gusts as high as 20 mph.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 84.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 63.
Mostly Clear

 Thursday

Thursday: Mostly sunny, with a high near 88.
Mostly Sunny

 Thursday
Night
Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Chance
T-storms
Lo 65 °F Hi 89 °F Lo 68 °F Hi 80 °F Lo 62 °F Hi 84 °F Lo 63 °F Hi 88 °F Lo 68 °F

 

Overnight
 
 A slight chance of showers. Cloudy, with a low around 65. East wind around 5 mph. Chance of precipitation is 20%.
Monday
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5pm. Some of the storms could be severe and produce heavy rainfall. High near 89. East wind 10 to 15 mph becoming south in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
 
 Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could be severe and produce heavy rainfall. Low around 68. South wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
 
 A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm. Partly sunny, with a high near 80. North wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
 
 Mostly clear, with a low around 62. Northwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday
 
 Sunny, with a high near 84.
Wednesday Night
 
 Mostly clear, with a low around 63.
Thursday
 
 Mostly sunny, with a high near 88.
Thursday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
 
 A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Friday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Saturday
 
 A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Saturday Night
 
 Partly cloudy, with a low around 68.
Sunday
 
 Mostly sunny, with a high near 86.

 

Forecast from NOAA-NWS for Clayton DE.