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

56°F

13°C

Humidity 77%
Wind Speed E 10 mph
Barometer 30.02 in (1016.4 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 18 Apr 4:53 pm EDT
Extended Forecast for

Derby CT

  • Tonight

    Tonight: A 30 percent chance of showers after 5am. Areas of fog after 11pm. Otherwise, mostly cloudy, with a low around 46. Southeast wind 5 to 8 mph becoming calm after midnight.

    Low: 46 °F

    Areas Fog
    then Chance
    Showers and
    Areas Fog

  • Sunday

    Sunday: Showers, mainly after 8am. Patchy fog before 8am. High near 56. Light and variable wind becoming northwest 10 to 15 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. West wind around 6 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers. Mostly sunny, with a high near 51. Northwest wind 7 to 10 mph.

    High: 51 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 31. Northwest wind around 7 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 39.

    Low: 39 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of showers after 5am. Areas of fog after 11pm. Otherwise, mostly cloudy, with a low around 46. Southeast wind 5 to 8 mph becoming calm after midnight.
Sunday
Showers, mainly after 8am. Patchy fog before 8am. High near 56. Light and variable wind becoming northwest 10 to 15 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Mostly clear, with a low around 36. West wind around 6 mph becoming calm in the evening.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 51. Northwest wind 7 to 10 mph.
Monday Night
Mostly clear, with a low around 31. Northwest wind around 7 mph.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Increasing clouds, with a low around 39.
Wednesday
Mostly cloudy, with a high near 60.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 45.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 63.
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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:
2:19 pm EDT Apr 18, 2026
Forecast Valid:
5pm EDT Apr 18, 2026-6pm EDT Apr 25, 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