Guilford Harbor Weather Forecast

    • 57
    • 66

    Rain Showers

    • 59
    • 70

    Mostly Cloudy

    • 60
    • 72

    Partly Sunny

    • 55
    • 72

    Slight Chance Rain Showers

    • 54
    • 69

    Partly Sunny

    • 54
    • 69

    Partly Sunny

Today 25 May Southern New Haven

Areas of fog in the morning. Showers with a slight chance of Thunderstorms. Not as cool with Highs in the lower 70s. Southeast Winds around 5 Mph, becoming southwest around 5 Mph in the afternoon. Chance of rain near 100 percent.

Tonight 25 May Southern New Haven

Mostly cloudy. Lows in the upper 50s. West Winds around 5 Mph, becoming north after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Guilford Harbor Temperature Statistics

May Temperature

Chester, Chester Airport (11.2 miles)

  • Lowest 1 May, 2026

    41 °F

  • Average May

    59.5 °F

  • Highest 20 May, 2026

    91.4 °F

Climate (2021–Present)

Chester, Chester Airport (11.2 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    62.5 °F
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