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.

Overcast

51°F

11°C

Humidity 92%
Wind Speed NW 6 mph
Barometer 29.78 in (1008.4 mb)
Dewpoint 49°F (9°C)
Visibility 9.00 mi
Wind Chill49°F (9°C)
Last update 19 Apr 10:53 am EDT
Extended Forecast for

Derby CT

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

  • Today

    Today: Showers, mainly before 5pm. Temperature falling to around 45 by 4pm. Northwest wind 11 to 17 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F⇓

    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 36. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 36 °F

    Decreasing
    Clouds

  • Monday

    Monday: A 30 percent chance of showers, mainly before 2pm. Partly sunny, with a high near 51. Light west wind becoming northwest 5 to 9 mph in the morning.

    High: 51 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. Northwest wind around 7 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 53. Light and variable wind becoming south 5 to 7 mph in the afternoon.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 8am. Partly sunny, with a high near 59.

    High: 59 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Today
Showers, mainly before 5pm. Temperature falling to around 45 by 4pm. Northwest wind 11 to 17 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 36. Northwest wind 5 to 8 mph becoming calm after midnight.
Monday
A 30 percent chance of showers, mainly before 2pm. Partly sunny, with a high near 51. Light west wind becoming northwest 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 30. Northwest wind around 7 mph.
Tuesday
Sunny, with a high near 53. Light and variable wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 39.
Wednesday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 65.
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
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Derby CT
 41.31°N 73.09°W (Elev. 115 ft)
Last Update:
10:15 am EDT Apr 19, 2026
Forecast Valid:
11am EDT Apr 19, 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