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.

Fair

42°F

6°C

Humidity 76%
Wind Speed SW 3 mph
Barometer 30.37 in (1028.4 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 30 Mar 12:53 am EDT
Extended Forecast for

Derby CT

  • Overnight

    Overnight: Mostly cloudy, with a low around 40. South wind around 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 63. Southwest wind 8 to 11 mph.

    High: 63 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of rain after 2am. Mostly cloudy, with a low around 49. Southwest wind 5 to 7 mph.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain before 2pm. Mostly cloudy, with a high near 68. South wind 6 to 11 mph.

    High: 68 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 2am. Mostly cloudy, with a low around 55. South wind 8 to 10 mph.

    Low: 55 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 75 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain likely before 8pm, then rain likely and possibly a thunderstorm between 8pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.

    Low: 45 °F

    Rain Likely

  • Thursday

    Thursday: A 40 percent chance of rain. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 40. Chance of precipitation is 60%.

    Low: 40 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 40. South wind around 7 mph.
Monday
Partly sunny, with a high near 63. Southwest wind 8 to 11 mph.
Monday Night
A 40 percent chance of rain after 2am. Mostly cloudy, with a low around 49. Southwest wind 5 to 7 mph.
Tuesday
A 30 percent chance of rain before 2pm. Mostly cloudy, with a high near 68. South wind 6 to 11 mph.
Tuesday Night
A 20 percent chance of rain after 2am. Mostly cloudy, with a low around 55. South wind 8 to 10 mph.
Wednesday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely before 8pm, then rain likely and possibly a thunderstorm between 8pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 53.
Thursday Night
Rain likely. Cloudy, with a low around 40. Chance of precipitation is 60%.
Friday
A 50 percent chance of rain. Cloudy, with a high near 55.
Friday Night
A 50 percent chance of rain. Cloudy, with a low around 40.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 55.
Saturday Night
A 40 percent chance of rain. Cloudy, with a low around 39.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 61.
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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:
7:43 pm EDT Mar 29, 2026
Forecast Valid:
1am EDT Mar 30, 2026-6pm EDT Apr 5, 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