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

75°F

24°C

Humidity 52%
Wind Speed Calm
Barometer 30.12 in (1020.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 15 Aug 7:53 pm EDT
Extended Forecast for

Derby CT

  • Tonight

    Tonight: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 81. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 81 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Showers, mainly after 11pm. Low around 66. South wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers

  • Monday

    Monday: Showers, mainly before 2pm. High near 82. Southeast wind 7 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 82 °F

    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 65. Light northwest wind.

    Low: 65 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 58. Calm wind.
Sunday
Increasing clouds, with a high near 81. Calm wind becoming south 5 to 9 mph in the afternoon.
Sunday Night
Showers, mainly after 11pm. Low around 66. South wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Showers, mainly before 2pm. High near 82. Southeast wind 7 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 65. Light northwest wind.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 86.
Wednesday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 65.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 58.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 79.
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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:
2:28 pm EDT Aug 15, 2026
Forecast Valid:
8pm EDT Aug 15, 2026-6pm EDT Aug 22, 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