Riverhead Weather Forecast

    • 3
    • 22

    Partly Sunny

    • 3
    • 18

    Partly Sunny

    • 13
    • 22

    Snow Likely

    • 17
    • 27

    Chance Snow

    • 18
    • 32

    Partly Sunny

    • 19
    • 33

    Partly Sunny

Today 29 Jan Northeast Suffolk

Mostly sunny. Cold with Highs in the lower 20s. West Winds 10 to 15 Mph.

Tonight 29 Jan Northeast Suffolk

Partly cloudy in the Evening, then clearing. Lows 5 to 11 above. Northwest Winds 15 to 20 Mph. Wind chill Values as low as 9 below after midnight.

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Riverhead Temperature Statistics

January Temperature

The Gabreski Airport (5 miles)

  • Lowest 27 January, 2026

    9 °F

  • Average January

    31.4 °F

  • Highest 9 January, 2026

    48.9 °F

Climate (2021–Present)

The Gabreski Airport (5 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    62.1 °F
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