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

32°F

0°C

Humidity 85%
Wind Speed Calm
Barometer 30.27 in (1025.0 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 25 Nov 12:53 am EST
Extended Forecast for

Derby CT

  • Overnight

    Overnight: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of rain, mainly after 4pm. Cloudy, with a high near 56. Calm wind becoming south 5 to 9 mph in the morning.

    High: 56 °F

    Cloudy then
    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly after 7pm. Temperature rising to around 52 by 3am. South wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 47 °F⇑

    Rain

  • Wednesday

    Wednesday: A 50 percent chance of showers. Cloudy, with a high near 62. South wind 5 to 9 mph.

    High: 62 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 36. West wind 6 to 10 mph.

    Low: 36 °F

    Chance
    Showers then
    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 31. Calm wind.
Tuesday
A 50 percent chance of rain, mainly after 4pm. Cloudy, with a high near 56. Calm wind becoming south 5 to 9 mph in the morning.
Tuesday Night
Rain, mainly after 7pm. Temperature rising to around 52 by 3am. South wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
A 50 percent chance of showers. Cloudy, with a high near 62. South wind 5 to 9 mph.
Wednesday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 36. West wind 6 to 10 mph.
Thanksgiving Day
Mostly sunny, with a high near 46.
Thursday Night
Mostly clear, with a low around 29.
Friday
Mostly sunny, with a high near 44.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 48.
Sunday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 36.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 54.
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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:
3:30 pm EST Nov 24, 2025
Forecast Valid:
1am EST Nov 25, 2025-6pm EST Dec 1, 2025
 
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