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.

Overcast

77°F

25°C

Humidity 85%
Wind Speed SE 9 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 13 Jul 9:53 pm EDT
Extended Forecast for

Derby CT

  • Tonight

    Tonight: Patchy drizzle after 5am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 70. Light south wind.

    Low: 70 °F

    Patchy Fog
    then Patchy
    Drizzle and
    Patchy Fog

  • Monday

    Monday: Patchy drizzle before 8am, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 85. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 40%.

    High: 85 °F

    Patchy
    Drizzle then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers. Mostly cloudy, with a high near 87. Calm wind becoming south around 6 mph in the afternoon.

    High: 87 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 72. Light southwest wind.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 74.

    Low: 74 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92.

    High: 92 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Patchy drizzle after 5am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 70. Light south wind.
Monday
Patchy drizzle before 8am, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 85. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 40%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 87. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 72. Light southwest wind.
Wednesday
Partly sunny, with a high near 89.
Wednesday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 74.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.
Friday
A 40 percent chance of showers after 2pm. Partly sunny, with a high near 93.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 71.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 88.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 68.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Derby CT
 41.34°N 73.09°W (Elev. 118 ft)
Last Update:
5:47 pm EDT Jul 13, 2025
Forecast Valid:
10pm EDT Jul 13, 2025-6pm EDT Jul 20, 2025
 
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