Merrill Weather Forecast

    • 48
    • 74

    Mostly Cloudy

    • 50
    • 74

    Chance Rain Showers

    • 35
    • 61

    Slight Chance Rain Showers

    • 32
    • 58

    Sunny

    • 42
    • 65

    Partly Sunny

    • 50
    • 71

    Partly Sunny

Today 17 Sep Southeast Aroostook

Patchy fog this morning. Mostly sunny. Highs in the mid 70s. Southwest Winds 5 to 10 Mph.

Tonight 17 Sep Southeast Aroostook

Mostly cloudy. Lows in the upper 40s. South Winds around 5 Mph.

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Merrill Temperature Statistics

September Temperature

Houlton, Houlton International Airport (21.1 miles)

  • Lowest 9 September, 2025

    35.1 °F

  • Average September

    57.2 °F

  • Highest 1 September, 2025

    78.1 °F

Climate (2020–Present)

Houlton, Houlton International Airport (21.1 miles)

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  • Average Low 2020–2025

    33.6 °F

  • Average 2020–2025

    44 °F

  • Average High 2020–2025

    53.8 °F
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