Riverhead Weather Forecast

    • 60
    • 75

    Increasing Clouds

    • 59
    • 86

    Mostly Sunny

    • 58
    • 74

    Mostly Sunny

    • 63
    • 80

    Mostly Sunny

    • 59
    • 80

    Chance Rain Showers

    • 54
    • 70

    Slight Chance Rain Showers

Today 16 May Northeast Suffolk

Sunny. Highs in the lower 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 16 May Northeast Suffolk

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the upper 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverhead Temperature Statistics

May Temperature

The Gabreski Airport (5 miles)

  • Lowest 1 May, 2026

    37 °F

  • Average May

    53.2 °F

  • Highest 10 May, 2026

    64 °F

Climate (2021–Present)

The Gabreski Airport (5 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    61.9 °F
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