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

48°F

9°C

Humidity 86%
Wind Speed N 3 mph
Barometer 29.85 in (1010.7 mb)
Dewpoint 44°F (7°C)
Visibility 9.00 mi
Last update 11 Nov 8:53 pm EST
Extended Forecast for

Derby CT

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 42. Calm wind becoming northeast around 5 mph after midnight.

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Showers, mainly after 1pm. High near 57. East wind 7 to 13 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Slight Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Rain. Low around 35. North wind 10 to 14 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Rain

  • Friday

    Friday: Rain, mainly before 4pm. High near 46. North wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain, possibly mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 30. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Saturday Night

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

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 42. Calm wind becoming northeast around 5 mph after midnight.
Thursday
Showers, mainly after 1pm. High near 57. East wind 7 to 13 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 35. North wind 10 to 14 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain, mainly before 4pm. High near 46. North wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of rain, possibly mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 30. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Sunny, with a high near 51.
Sunday Night
Mostly clear, with a low around 30.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 28.
Wednesday
Sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Derby CT
 41.34°N 73.09°W (Elev. 118 ft)
Last Update:
6:08 pm EST Nov 11, 2026
Forecast Valid:
10pm EST Nov 11, 2026-6pm EST Nov 18, 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