National Weather Service Forecast for: Derby CT
Issued by: National Weather Service New York, NY
Updated: 3:35 am EDT Jun 9, 2025
 
Today

Today: A 40 percent chance of showers.  Mostly cloudy, with a high near 69. East wind 8 to 10 mph.
Chance
Showers
Tonight

Tonight: A slight chance of showers before 2am, then a chance of showers after 5am.  Cloudy, with a low around 61. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%.
Chance
Showers
Tuesday

Tuesday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 5pm, then a chance of showers and thunderstorms after 5pm.  Cloudy, with a high near 74. Light and variable wind becoming southeast around 6 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Showers
Likely
Tuesday
Night
Tuesday Night: A 30 percent chance of showers before 8pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 60. Light and variable wind.
Chance
Showers then
Mostly Clear
Wednesday

Wednesday: Sunny, with a high near 83. Light west wind increasing to 6 to 11 mph in the morning.
Sunny

Wednesday
Night
Wednesday Night: Mostly clear, with a low around 64.
Mostly Clear

Thursday

Thursday: Sunny, with a high near 86.
Sunny

Thursday
Night
Thursday Night: Mostly cloudy, with a low around 63.
Mostly Cloudy

Friday

Friday: Partly sunny, with a high near 79.
Partly Sunny

Hi 69 °F Lo 61 °F Hi 74 °F Lo 60 °F Hi 83 °F Lo 64 °F Hi 86 °F Lo 63 °F Hi 79 °F

 

Today
 
A 40 percent chance of showers. Mostly cloudy, with a high near 69. East wind 8 to 10 mph.
Tonight
 
A slight chance of showers before 2am, then a chance of showers after 5am. Cloudy, with a low around 61. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
 
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 5pm, then a chance of showers and thunderstorms after 5pm. Cloudy, with a high near 74. Light and variable wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
 
A 30 percent chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 60. Light and variable wind.
Wednesday
 
Sunny, with a high near 83. Light west wind increasing to 6 to 11 mph in the morning.
Wednesday Night
 
Mostly clear, with a low around 64.
Thursday
 
Sunny, with a high near 86.
Thursday Night
 
Mostly cloudy, with a low around 63.
Friday
 
Partly sunny, with a high near 79.
Friday Night
 
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 59.
Saturday
 
A 40 percent chance of showers. Mostly cloudy, with a high near 70.
Saturday Night
 
A 40 percent chance of showers. Mostly cloudy, with a low around 56.
Sunday
 
A 30 percent chance of showers. Partly sunny, with a high near 70.

 

Forecast from NOAA-NWS for Derby CT.