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.

Fog/Mist

73°F

23°C

Humidity 90%
Wind Speed S 5 mph
Barometer 30.02 in (1016.6 mb)
Dewpoint 70°F (21°C)
Visibility 6.00 mi
Last update 22 Jun 9:53 am EDT
Extended Forecast for

Derby CT

Extreme Heat Warning June 22, 12:00pm until June 24, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: A 40 percent chance of showers and thunderstorms before 2pm. Partly sunny, with a high near 94. Heat index values as high as 103. West wind 10 to 13 mph.

    High: 94 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 75. West wind 5 to 7 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 96. Heat index values as high as 106. Light and variable wind becoming south 5 to 7 mph in the morning.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. South wind around 6 mph becoming calm in the evening.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100. Light west wind increasing to 5 to 9 mph in the morning.

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers after 2pm. Mostly cloudy, with a high near 85.

    High: 85 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms before 2pm. Partly sunny, with a high near 94. Heat index values as high as 103. West wind 10 to 13 mph.
Tonight
Mostly clear, with a low around 75. West wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 96. Heat index values as high as 106. Light and variable wind becoming south 5 to 7 mph in the morning.
Monday Night
Mostly clear, with a low around 73. South wind around 6 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 100. Light west wind increasing to 5 to 9 mph in the morning.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Mostly sunny, with a high near 94.
Wednesday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Thursday
A 40 percent chance of showers after 2pm. Mostly cloudy, with a high near 85.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 65.
Friday
A 30 percent chance of showers. Mostly cloudy, with a high near 79.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 62.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 75.
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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:
6:14 am EDT Jun 22, 2025
Forecast Valid:
10am EDT Jun 22, 2025-6pm EDT Jun 28, 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