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

85°F

29°C

Humidity 75%
Wind Speed SE 6 mph
Barometer 30.04 in (1017.3 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 15 Jul 6:53 pm EDT
Extended Forecast for

New Haven CT

Heat Advisory July 16, 11:00am until July 17, 10:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Patchy fog before 2am, then patchy fog after 3am. Otherwise, increasing clouds, with a low around 72. Light south wind.

    Low: 72 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 89. Heat index values as high as 99. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 89 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 73. South wind 3 to 6 mph.

    Low: 73 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 89. Heat index values as high as 100. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 75. Southwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog before 2am, then patchy fog after 3am. Otherwise, increasing clouds, with a low around 72. Light south wind.
Wednesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 89. Heat index values as high as 99. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 73. South wind 3 to 6 mph.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 89. Heat index values as high as 100. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of thunderstorms before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 75. Southwest wind around 6 mph. Chance of precipitation is 30%.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 68.
Sunday
A 50 percent chance of showers after 8am. Partly sunny, with a high near 84.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 69.
Monday
Mostly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Haven CT
 41.31°N 72.92°W (Elev. 33 ft)
Last Update:
3:16 pm EDT Jul 15, 2025
Forecast Valid:
7pm EDT Jul 15, 2025-6pm EDT Jul 22, 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