Riverhead Weather Forecast

    • 35
    • 52

    Rain

    • 30
    • 44

    Rain

    • 32
    • 43

    Partly Sunny

    • 37
    • 48

    Chance Rain

    • 40
    • 51

    Rain Likely

    • 25
    • 52

    Partly Sunny

    • 29
    • 40

    Mostly Sunny

Today 22 Mar Northeast Suffolk

Mostly cloudy. A chance of rain this afternoon. Highs in the upper 40s. South Winds 10 to 15 Mph. Chance of rain 50 percent.

Tonight 22 Mar Northeast Suffolk

Rain. Lows in the upper 30s. South Winds 5 to 10 Mph, becoming northeast after midnight. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverhead Temperature Statistics

March Temperature

The Gabreski Airport (5 miles)

  • Lowest 2 March, 2026

    14 °F

  • Average March

    38.8 °F

  • Highest 9 March, 2026

    66 °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

    62 °F
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