Northumberland Weather Forecast

    • 52
    • 80

    Mostly Sunny

    • 60
    • 83

    Chance Rain Showers

    • 66
    • 92

    Rain Showers

    • 55
    • 83

    Mostly Sunny

    • 50
    • 78

    Chance Rain Showers

    • 50
    • 74

    Partly Sunny

    • 53
    • 78

    Chance Rain Showers

Today 12 Jul Southern Coos

Partly sunny. Highs in the lower 80s. Light and variable Winds.

Tonight 12 Jul Southern Coos

Partly cloudy. Lows in the upper 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Northumberland Temperature Statistics

July Temperature

Whitefield - Mount Washington Regional Airport (13 miles)

  • Lowest 5 July, 2026

    46.9 °F

  • Average July

    70.5 °F

  • Highest 2 July, 2026

    89.1 °F

Climate (2021–2026)

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

    55.2 °F
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