New Haven Weather Forecast

    • 37
    • 45

    Increasing Clouds

    • 36
    • 58

    Rain Showers

    • 23
    • 43

    Partly Sunny

    • 27
    • 39

    Mostly Cloudy

    • 31
    • 45

    Mostly Cloudy

    • 33
    • 50

    Mostly Cloudy

Today 15 Mar Southern New Haven

Mostly cloudy this Morning, then becoming partly sunny. Highs in the mid 40s. Northeast Winds around 5 Mph, becoming southeast with Gusts up to 20 Mph this afternoon.

Tonight 15 Mar Southern New Haven

Showers with a slight chance of Thunderstorms after midnight. Patchy fog after midnight. Lows in the upper 30s. Southeast Winds 10 to 15 Mph. Gusts up to 20 Mph, increasing to 30 Mph after midnight. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

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New Haven Temperature Statistics

March Temperature

New Haven, Tweed-New Haven Airport (3.7 miles)

  • Lowest 3 March, 2026

    15.1 °F

  • Average March

    38.3 °F

  • Highest 9 March, 2026

    63 °F

Climate (2021–Present)

New Haven, Tweed-New Haven Airport (3.7 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    63.6 °F
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