Northumberland Weather Forecast

    • 49
    • 72

    Rain Showers

    • 46
    • 66

    Rain Showers Likely

    • 42
    • 62

    Slight Chance Rain Showers

    • 44
    • 64

    Mostly Cloudy

    • 49
    • 65

    Chance Rain Showers

    • 46
    • 67

    Chance Rain Showers

Today 2 May Southern Coos

Mostly cloudy. Showers likely in the Morning, then a chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the upper 60s. South Winds around 10 Mph. Chance of rain 70 percent.

Tonight 2 May Southern Coos

Partly cloudy. A chance of Showers with a slight chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the lower 50s. Light and variable Winds. Chance of rain 50 percent.

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Northumberland Temperature Statistics

May Temperature

Whitefield - Mount Washington Regional Airport (13 miles)

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Climate (2020–Present)

Whitefield - Mount Washington Regional Airport (13 miles)

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  • Average Low 2020–2025

    32.7 °F

  • Average 2020–2025

    44.2 °F

  • Average High 2020–2025

    55.5 °F
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