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

41°F

5°C

Humidity 96%
Wind Speed Calm
Barometer 29.74 in (1007.0 mb)
Dewpoint 40°F (4°C)
Visibility 7.00 mi
Last update 21 Mar 2:53 am EDT
Extended Forecast for

Derby CT

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 42. Light southwest wind.

    Low: 42 °F

    Patchy Fog

  • Saturday

    Saturday: Mostly sunny, with a high near 54. North wind 6 to 10 mph.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of rain after 2pm. Mostly cloudy, with a high near 58. South wind 6 to 10 mph.

    High: 58 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain, mainly after 8pm. Low around 38. Light and variable wind becoming north around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 38 °F

    Rain

  • Monday

    Monday: A 40 percent chance of rain before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 47.

    High: 47 °F

    Chance Rain

  • Monday Night

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

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 42. Light southwest wind.
Saturday
Mostly sunny, with a high near 54. North wind 6 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 38. Calm wind.
Sunday
A 40 percent chance of rain after 2pm. Mostly cloudy, with a high near 58. South wind 6 to 10 mph.
Sunday Night
Rain, mainly after 8pm. Low around 38. Light and variable wind becoming north around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
A 40 percent chance of rain before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 47.
Monday Night
Mostly clear, with a low around 28.
Tuesday
Sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 52.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 50.
Thursday Night
Rain likely. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Friday
Rain likely. Partly sunny, with a high near 50. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Derby CT
 41.31°N 73.09°W (Elev. 115 ft)
Last Update:
2:34 am EDT Mar 21, 2026
Forecast Valid:
3am EDT Mar 21, 2026-6pm EDT Mar 27, 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