National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

New Haven, Tweed-New Haven Airport (KHVN)

Lat: 41.26°NLon: 72.89°WElev: 13ft.

Fog/Mist

20°F

-7°C

Humidity 89%
Wind Speed Calm
Barometer 30.15 in (1020.9 mb)
Dewpoint 17°F (-8°C)
Visibility 6.00 mi
Last update 28 Feb 6:53 am EST
Extended Forecast for

Derby CT

  • Today

    Today: Areas of fog before 9am. Otherwise, partly sunny, with a high near 46. Calm wind becoming south 5 to 7 mph in the morning.

    High: 46 °F

    Areas Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 27. Calm wind becoming north 5 to 8 mph in the evening.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Snow likely, mainly between 10am and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 37. Wind chill values between 25 and 30. North wind 6 to 8 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 37 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 12. Wind chill values between 5 and 10. Northwest wind 6 to 10 mph.

    Low: 12 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 29. North wind around 7 mph.

    High: 29 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain and snow likely after 1pm. Increasing clouds, with a high near 40. Chance of precipitation is 60%.

    High: 40 °F

    Partly Sunny
    then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Rain. Low around 34. Chance of precipitation is 90%.

    Low: 34 °F

    Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain before 1pm. Partly sunny, with a high near 48.

    High: 48 °F

    Chance Rain

Detailed Forecast

Today
Areas of fog before 9am. Otherwise, partly sunny, with a high near 46. Calm wind becoming south 5 to 7 mph in the morning.
Tonight
Partly cloudy, with a low around 27. Calm wind becoming north 5 to 8 mph in the evening.
Sunday
Snow likely, mainly between 10am and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 37. Wind chill values between 25 and 30. North wind 6 to 8 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
Mostly clear, with a low around 12. Wind chill values between 5 and 10. Northwest wind 6 to 10 mph.
Monday
Sunny, with a high near 29. North wind around 7 mph.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Rain and snow likely after 1pm. Increasing clouds, with a high near 40. Chance of precipitation is 60%.
Tuesday Night
Rain. Low around 34. Chance of precipitation is 90%.
Wednesday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 48.
Wednesday Night
A 40 percent chance of rain after 1am. Mostly cloudy, with a low around 31.
Thursday
A 40 percent chance of rain. Cloudy, with a high near 49.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 39.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 53.
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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:
5:21 am EST Feb 28, 2026
Forecast Valid:
7am EST Feb 28, 2026-6pm EST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation