National Weather Service Forecast for: Derby CT
Issued by: National Weather Service New York, NY
Updated: 5:51 pm EDT Jun 11, 2025
 
Tonight

Tonight: Clear, with a low around 66. Southwest wind around 6 mph.
Clear

Thursday

Thursday: Sunny, with a high near 87. West wind 7 to 10 mph.
Sunny

Thursday
Night
Thursday Night: A 20 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 62. Northwest wind around 6 mph becoming calm  in the evening.
Slight Chance
T-storms

Friday

Friday: Mostly sunny, with a high near 81. Calm wind becoming south around 6 mph in the afternoon.
Mostly Sunny

Friday
Night
Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am.  Mostly cloudy, with a low around 60. Southeast wind around 5 mph becoming calm  in the evening.
Slight Chance
T-storms then
Chance
Showers
Saturday

Saturday: A 50 percent chance of showers.  Cloudy, with a high near 74.
Chance
Showers

Saturday
Night
Saturday Night: A 40 percent chance of showers.  Cloudy, with a low around 58.
Chance
Showers

Sunday

Sunday: A 40 percent chance of showers.  Mostly cloudy, with a high near 69.
Chance
Showers

Sunday
Night
Sunday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 56.
Chance
Showers

Lo 66 °F Hi 87 °F Lo 62 °F Hi 81 °F Lo 60 °F Hi 74 °F Lo 58 °F Hi 69 °F Lo 56 °F

 

Tonight
 
Clear, with a low around 66. Southwest wind around 6 mph.
Thursday
 
Sunny, with a high near 87. West wind 7 to 10 mph.
Thursday Night
 
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 62. Northwest wind around 6 mph becoming calm in the evening.
Friday
 
Mostly sunny, with a high near 81. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
 
A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 60. Southeast wind around 5 mph becoming calm in the evening.
Saturday
 
A 50 percent chance of showers. Cloudy, with a high near 74.
Saturday Night
 
A 40 percent chance of showers. Cloudy, with a low around 58.
Sunday
 
A 40 percent chance of showers. Mostly cloudy, with a high near 69.
Sunday Night
 
A 30 percent chance of showers. Mostly cloudy, with a low around 56.
Monday
 
A 30 percent chance of showers. Partly sunny, with a high near 70.
Monday Night
 
A 30 percent chance of showers. Mostly cloudy, with a low around 58.
Tuesday
 
A 30 percent chance of showers. Partly sunny, with a high near 75.
Tuesday Night
 
A 30 percent chance of showers. Mostly cloudy, with a low around 61.
Wednesday
 
A 30 percent chance of showers. Partly sunny, with a high near 84.

 

Forecast from NOAA-NWS for Derby CT.