Riverhead Weather Forecast

    • 69
    • 81

    Rain Showers

    • 68
    • 80

    Chance Rain Showers

    • 68
    • 84

    Mostly Sunny

    • 69
    • 86

    Partly Sunny

    • 63
    • 82

    Chance Rain Showers

    • 64
    • 79

    Slight Chance Rain Showers

Today 16 Aug Northeast Suffolk

Mostly sunny. Near steady temperature in the upper 70s. South Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 16 Aug Northeast Suffolk

Mostly cloudy. A chance of Showers in the Evening, then Showers with a slight chance of Thunderstorms after midnight. Lows in the upper 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

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Riverhead Temperature Statistics

August Temperature

The Gabreski Airport (5 miles)

  • Lowest 5 August, 2026

    55 °F

  • Average August

    75.6 °F

  • Highest 9 August, 2026

    90 °F

Climate (2021–2026)

The Gabreski Airport (5 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    62 °F
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