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.

Fair

71°F

22°C

Humidity 90%
Wind Speed Calm
Barometer 30.01 in (1016.3 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 27 Aug 8:53 pm EDT
Extended Forecast for

Derby CT

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms before 2am. Cloudy, with a low around 68. South wind around 6 mph.

    Low: 68 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.

    High: 82 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 62. Calm wind becoming north around 6 mph after midnight.

    Low: 62 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 81. North wind around 5 mph becoming light and variable in the afternoon.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms before 2am. Cloudy, with a low around 68. South wind around 6 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 62. Calm wind becoming north around 6 mph after midnight.
Saturday
Sunny, with a high near 81. North wind around 5 mph becoming light and variable in the afternoon.
Saturday Night
Mostly clear, with a low around 61. Calm wind.
Sunday
Sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 66.
Monday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 82.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 66.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 81.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 65.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Derby CT
 41.34°N 73.09°W (Elev. 118 ft)
Last Update:
8:06 pm EDT Aug 27, 2026
Forecast Valid:
9pm EDT Aug 27, 2026-6pm EDT Sep 3, 2026
 
Forecast Discussion
 
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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