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.

Fair

47°F

8°C

Humidity 59%
Wind Speed N 6 mph
Barometer 29.99 in (1015.4 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 17 Oct 7:53 am EDT
Extended Forecast for

Derby CT

Frost Advisory October 17, 11:00pm until October 18, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Today

    Today: Sunny, with a high near 63. North wind around 11 mph.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after 5am. Otherwise, clear, with a low around 36. Northwest wind 3 to 6 mph.

    Low: 36 °F

    Clear then
    Areas Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, sunny, with a high near 66. Light and variable wind becoming west around 5 mph in the afternoon.

    High: 66 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 71. South wind 5 to 15 mph.

    High: 71 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Showers. Low around 54. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Showers

  • Monday

    Monday: Showers, mainly before 8am. High near 65. Chance of precipitation is 80%.

    High: 65 °F

    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 63. North wind around 11 mph.
Tonight
Areas of frost after 5am. Otherwise, clear, with a low around 36. Northwest wind 3 to 6 mph.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 66. Light and variable wind becoming west around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 48. Calm wind.
Sunday
Mostly sunny, with a high near 71. South wind 5 to 15 mph.
Sunday Night
Showers. Low around 54. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, mainly before 8am. High near 65. Chance of precipitation is 80%.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Derby CT
 41.34°N 73.09°W (Elev. 118 ft)
Last Update:
7:59 am EDT Oct 17, 2025
Forecast Valid:
8am EDT Oct 17, 2025-6pm EDT Oct 23, 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