National Weather Service Forecast for: Derby CT
Issued by: National Weather Service New York, NY
Updated: 2:20 pm EDT May 26, 2026
 
Tonight

Tonight: Mostly cloudy, with a low around 61. Southwest wind 3 to 7 mph.
Mostly Cloudy

 Wednesday

Wednesday: Mostly cloudy, with a high near 86. Southwest wind 3 to 8 mph.
Mostly Cloudy

 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 60. North wind around 5 mph.
Partly Cloudy

 Thursday

Thursday: A 20 percent chance of showers after 2pm. Sunny, with a high near 78. North wind 6 to 11 mph.
Sunny then
Slight Chance
Showers
 Thursday
Night
Thursday Night: Mostly clear, with a low around 54. North wind 5 to 8 mph becoming calm in the evening.
Mostly Clear

 Friday

Friday: Mostly sunny, with a high near 74.
Mostly Sunny

 Friday
Night
Friday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 55.
Partly Cloudy
then Chance
Showers
 Saturday

Saturday: A 30 percent chance of showers before 8am. Mostly sunny, with a high near 70.
Chance
Showers then
Mostly Sunny
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 50.
Partly Cloudy
Lo 61 °F Hi 86 °F Lo 60 °F Hi 78 °F Lo 54 °F Hi 74 °F Lo 55 °F Hi 70 °F Lo 50 °F

 

Tonight
 
 Mostly cloudy, with a low around 61. Southwest wind 3 to 7 mph.
Wednesday
 
 Mostly cloudy, with a high near 86. Southwest wind 3 to 8 mph.
Wednesday Night
 
 Partly cloudy, with a low around 60. North wind around 5 mph.
Thursday
 
 A 20 percent chance of showers after 2pm. Sunny, with a high near 78. North wind 6 to 11 mph.
Thursday Night
 
 Mostly clear, with a low around 54. North wind 5 to 8 mph becoming calm in the evening.
Friday
 
 Mostly sunny, with a high near 74.
Friday Night
 
 A 30 percent chance of showers after 2am. Partly cloudy, with a low around 55.
Saturday
 
 A 30 percent chance of showers before 8am. Mostly sunny, with a high near 70.
Saturday Night
 
 Partly cloudy, with a low around 50.
Sunday
 
 Sunny, with a high near 71.
Sunday Night
 
 Partly cloudy, with a low around 53.
Monday
 
 A 40 percent chance of showers. Partly sunny, with a high near 70.
Monday Night
 
 Partly cloudy, with a low around 52.
Tuesday
 
 Mostly sunny, with a high near 74.

 

Forecast from NOAA-NWS for Derby CT.