Mount Martha Weather Forecast

    • 1
    • 4

    Slight Chance Snow

    • 10
    • 18

    Increasing Clouds

    • 10
    • 28

    Slight Chance Snow Showers

    • 31
    • 35

    Rain

    • 2
    • 43

    Rain Likely

    • 12
    • 17

    Chance Snow

    • 5
    • 26

    Chance Snow

Today 15 Dec Southern Coos

Mostly cloudy with a 20 percent chance of snow. Highs around 12. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Wind chill Values as low as 6 below.

Tonight 15 Dec Southern Coos

Mostly cloudy. A slight chance of snow this evening. Lows around 5 above. West Winds around 10 Mph with Gusts up to 25 Mph this Evening, becoming light and variable. Chance of snow 20 percent. Wind chill Values as low as 4 below.

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Mount Martha Temperature Statistics

December Temperature

Mount Washington (10.6 miles)

  • Lowest 4 December, 2025

    -20.2 °F

  • Average December

    3.9 °F

  • Highest 2 December, 2025

    17.6 °F

Climate (2020–Present)

Mount Washington (10.6 miles)

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  • Average Low 2020–2025

    24.7 °F

  • Average 2020–2025

    30 °F

  • Average High 2020–2025

    35.1 °F
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