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.

Overcast

47°F

8°C

Humidity 74%
Wind Speed Calm
Barometer 29.97 in (1015.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 11 Mar 4:53 am EDT
Extended Forecast for

Derby CT

  • Today

    Today: A 20 percent chance of showers after 11am. Mostly sunny, with a high near 66. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 66 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 43. South wind around 8 mph.

    Low: 43 °F

    Chance
    T-storms

  • Thursday

    Thursday: Rain showers likely before 2pm, then a slight chance of rain and snow showers. Mostly cloudy, with a temperature rising to near 55 by 8am, then falling to around 42 during the remainder of the day. Northwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 55 °F⇓

    Showers
    Likely then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 28. West wind 5 to 8 mph.

    Low: 28 °F

    Gradual
    Clearing

  • Friday

    Friday: Increasing clouds, with a high near 46. Light west wind becoming south 10 to 15 mph in the morning.

    High: 46 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 49.

    High: 49 °F

    Cloudy

Detailed Forecast

Today
A 20 percent chance of showers after 11am. Mostly sunny, with a high near 66. Calm wind becoming south 5 to 9 mph in the afternoon.
Tonight
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 43. South wind around 8 mph.
Thursday
Rain showers likely before 2pm, then a slight chance of rain and snow showers. Mostly cloudy, with a temperature rising to near 55 by 8am, then falling to around 42 during the remainder of the day. Northwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 28. West wind 5 to 8 mph.
Friday
Increasing clouds, with a high near 46. Light west wind becoming south 10 to 15 mph in the morning.
Friday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Cloudy, with a high near 49.
Sunday Night
Rain, mainly after 8pm. Low around 39. Chance of precipitation is 90%.
Monday
Rain. High near 57. Chance of precipitation is 90%.
Monday Night
Rain likely. Mostly cloudy, with a low around 28. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Derby CT
 41.31°N 73.09°W (Elev. 115 ft)
Last Update:
3:05 am EDT Mar 11, 2026
Forecast Valid:
5am EDT Mar 11, 2026-6pm EDT Mar 17, 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