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

36°F

2°C

Humidity 82%
Wind Speed SW 3 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 20 Apr 1:53 am EDT
Extended Forecast for

Derby CT

Freeze Warning April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Overnight

    Overnight: Areas of frost after 4am. Otherwise, clear, with a low around 34. Calm wind.

    Low: 34 °F

    Areas Frost

  • Monday

    Monday: A 40 percent chance of showers after 8am. Areas of frost before 8am. Otherwise, partly sunny, with a high near 51. Calm wind becoming northwest 5 to 8 mph in the morning.

    High: 51 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Widespread frost after 3am. Otherwise, mostly clear, with a low around 28. Northwest wind 6 to 8 mph.

    Low: 28 °F

    Partly Cloudy
    then Frost

  • Tuesday

    Tuesday: Widespread frost before 7am. Otherwise, sunny, with a high near 53. Wind chill values between 20 and 30 early. North wind around 6 mph becoming light and variable.

    High: 53 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Increasing clouds, with a low around 39. South wind around 6 mph.

    Low: 39 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Overnight
Areas of frost after 4am. Otherwise, clear, with a low around 34. Calm wind.
Monday
A 40 percent chance of showers after 8am. Areas of frost before 8am. Otherwise, partly sunny, with a high near 51. Calm wind becoming northwest 5 to 8 mph in the morning.
Monday Night
Widespread frost after 3am. Otherwise, mostly clear, with a low around 28. Northwest wind 6 to 8 mph.
Tuesday
Widespread frost before 7am. Otherwise, sunny, with a high near 53. Wind chill values between 20 and 30 early. North wind around 6 mph becoming light and variable.
Tuesday Night
A 30 percent chance of showers after 2am. Increasing clouds, with a low around 39. South wind around 6 mph.
Wednesday
Mostly cloudy, with a high near 57.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 65.
Friday Night
A 40 percent chance of showers. Partly cloudy, with a low around 42.
Saturday
A 50 percent chance of showers. Partly sunny, with a high near 61.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 43.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Derby CT
 41.31°N 73.09°W (Elev. 115 ft)
Last Update:
6:50 pm EDT Apr 19, 2026
Forecast Valid:
2am EDT Apr 20, 2026-6pm EDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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