Riverhead Weather Forecast

    • 20
    • 30

    Increasing Clouds

    • 24
    • 34

    Partly Sunny

    • 30
    • 44

    Partly Sunny

    • 47
    • 53

    Mostly Cloudy

    • 22
    • 51

    Partly Sunny

    • 32
    • 44

    Mostly Cloudy

Today 15 Dec Northeast Suffolk

Sunny. Highs in the lower 30s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 15 Dec Northeast Suffolk

Mostly cloudy. A slight chance of snow Showers in the evening. Lows in the mid 20s. West Winds 10 to 15 Mph. Chance of snow 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverhead Temperature Statistics

December Temperature

The Gabreski Airport (5 miles)

  • Lowest 9 December, 2025

    12.9 °F

  • Average December

    34.2 °F

  • Highest 2 December, 2025

    51.1 °F

Climate (2020–Present)

The Gabreski Airport (5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    44 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    62.1 °F
Get WillyWeather+ to remove ads