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.

Fog/Mist

39°F

4°C

Humidity 96%
Wind Speed E 5 mph
Barometer 30.37 in (1028.3 mb)
Dewpoint 38°F (3°C)
Visibility 2.00 mi
Wind Chill35°F (2°C)
Last update 3 Apr 4:53 am EDT
Extended Forecast for

Derby CT

  • Today

    Today: Areas of fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 64 °F

    Areas Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Patchy fog between 2am and 3am. Otherwise, mostly cloudy, with a low around 52. South wind 3 to 6 mph.

    Low: 52 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: A 30 percent chance of showers after 2pm. Increasing clouds, with a high near 69. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 69 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly after 8pm. Cloudy, with a low around 42. East wind 6 to 10 mph. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers before 11am, then showers and possibly a thunderstorm between 11am and 2pm, then showers after 2pm. High near 63. Southwest wind 7 to 11 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 63 °F

    Showers

  • Sunday Night

    Sunday Night: Cloudy during the early evening, then gradual clearing, with a low around 38.

    Low: 38 °F

    Gradual
    Clearing

  • Monday

    Monday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow showers before 2pm. Partly sunny, with a high near 50. Chance of precipitation is 30%.

    High: 50 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Areas of fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Tonight
Patchy fog between 2am and 3am. Otherwise, mostly cloudy, with a low around 52. South wind 3 to 6 mph.
Saturday
A 30 percent chance of showers after 2pm. Increasing clouds, with a high near 69. Calm wind becoming east 5 to 8 mph in the afternoon.
Saturday Night
Showers likely, mainly after 8pm. Cloudy, with a low around 42. East wind 6 to 10 mph. Chance of precipitation is 60%.
Sunday
Showers before 11am, then showers and possibly a thunderstorm between 11am and 2pm, then showers after 2pm. High near 63. Southwest wind 7 to 11 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 38.
Monday
Mostly sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
A chance of rain and snow showers before 2pm. Partly sunny, with a high near 50. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 29.
Wednesday
Sunny, with a high near 50.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Mostly sunny, with a high near 59.
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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:
2:20 am EDT Apr 3, 2026
Forecast Valid:
6am EDT Apr 3, 2026-6pm EDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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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