Northumberland Weather Forecast

    • 9
    • 28

    Partly Sunny

    • 20
    • 35

    Mostly Cloudy

    • 21
    • 39

    Slight Chance Snow

    • 21
    • 38

    Snow Likely

    • 16
    • 38

    Chance Rain/Snow

    • 12
    • 33

    Chance Snow

Today 15 Feb Southern Coos

Mostly sunny. Highs in the mid 20s. Light and variable Winds. Gusts up to 20 Mph in the morning.

Tonight 15 Feb Southern Coos

Partly cloudy with isolated snow Showers. Lows around zero. Northwest Winds around 10 Mph with Gusts up to 20 Mph. Chance of snow 20 percent. Wind chill Values as low as 6 below.

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Northumberland Temperature Statistics

February Temperature

Whitefield - Mount Washington Regional Airport (13 miles)

  • Lowest 1 February, 2026

    -15 °F

  • Average February

    13.4 °F

  • Highest 10 February, 2026

    28.9 °F

Climate (2021–Present)

Whitefield - Mount Washington Regional Airport (13 miles)

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  • Average Low 2021–2026

    32.4 °F

  • Average 2021–2026

    44 °F

  • Average High 2021–2026

    55.3 °F
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