National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

New Haven, Tweed-New Haven Airport (KHVN)

Lat: 41.26°NLon: 72.89°WElev: 13ft.

Partly Cloudy

79°F

26°C

Humidity 72%
Wind Speed W 9 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 28 Aug 5:53 pm EDT
Extended Forecast for

Derby CT

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 57. Calm wind becoming north 5 to 7 mph in the evening.

    Low: 57 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. North wind 3 to 6 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 82. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers. Mostly cloudy, with a high near 80.

    High: 80 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 57. Calm wind becoming north 5 to 7 mph in the evening.
Saturday
Sunny, with a high near 79. North wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 59. Calm wind.
Sunday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 82. Calm wind becoming southwest 5 to 9 mph in the morning.
Sunday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 82.
Monday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 64.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 80.
Tuesday Night
Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 82.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 66.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 83.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Derby CT
 41.34°N 73.09°W (Elev. 118 ft)
Last Update:
2:11 pm EDT Aug 28, 2026
Forecast Valid:
6pm EDT Aug 28, 2026-6pm EDT Sep 4, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation