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

47°F

8°C

Humidity 97%
Wind Speed S 3 mph
Barometer 29.54 in (1000.3 mb)
Dewpoint 46°F (8°C)
Visibility 0.50 mi
Last update 12 Mar 7:53 am EDT
Extended Forecast for

Derby CT

  • Today

    Today: Rain. Temperature falling to around 41 by 4pm. Northwest wind 7 to 16 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F⇓

    Rain

  • Tonight

    Tonight: Snow likely, possibly mixed with rain, becoming all snow after 7pm, then gradually ending. Cloudy during the early evening, then gradual clearing, with a low around 28. Northwest wind around 7 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 28 °F

    Rain/Snow
    Likely then
    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 44. Light and variable wind becoming south 8 to 13 mph in the morning.

    High: 44 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 20 percent chance of rain before 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 35. South wind 8 to 10 mph, with gusts as high as 22 mph.

    Low: 35 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 50. West wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 30.

    Low: 30 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, with a high near 47.

    High: 47 °F

    Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 39. Chance of precipitation is 80%.

    Low: 39 °F

    Chance Rain
    then Rain

  • Monday

    Monday: Rain. High near 59. Chance of precipitation is 90%.

    High: 59 °F

    Rain

Detailed Forecast

Today
Rain. Temperature falling to around 41 by 4pm. Northwest wind 7 to 16 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Snow likely, possibly mixed with rain, becoming all snow after 7pm, then gradually ending. Cloudy during the early evening, then gradual clearing, with a low around 28. Northwest wind around 7 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Increasing clouds, with a high near 44. Light and variable wind becoming south 8 to 13 mph in the morning.
Friday Night
A 20 percent chance of rain before 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 35. South wind 8 to 10 mph, with gusts as high as 22 mph.
Saturday
Mostly sunny, with a high near 50. West wind 11 to 14 mph, with gusts as high as 25 mph.
Saturday Night
Increasing clouds, with a low around 30.
Sunday
Cloudy, with a high near 47.
Sunday Night
Rain, mainly after 2am. Low around 39. Chance of precipitation is 80%.
Monday
Rain. High near 59. Chance of precipitation is 90%.
Monday Night
Rain likely, mainly before 2am. Mostly cloudy, with a low around 32. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of rain. Mostly sunny, with a high near 42.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Mostly sunny, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Derby CT
 41.31°N 73.09°W (Elev. 115 ft)
Last Update:
7:04 am EDT Mar 12, 2026
Forecast Valid:
8am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation