Mercer Weather Forecast

    • 46
    • 77

    Becoming Sunny

    • 43
    • 72

    Mostly Sunny

    • 49
    • 72

    Mostly Cloudy

    • 49
    • 72

    Rain Showers

    • 48
    • 72

    Partly Sunny

    • 50
    • 76

    Mostly Sunny

Today 11 Sep Southern Somerset

Patchy fog in the morning. Mostly sunny. Highs in the mid 70s. North Winds around 10 Mph.

Tonight 11 Sep Southern Somerset

Mostly clear. Patchy fog after midnight. Lows in the mid 40s. North Winds around 10 Mph in the Evening, becoming light and variable.

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  • Temperature Real-Time

Mercer Temperature Statistics

September Temperature

Waterville, Waterville Robert LaFleur Airport (15.5 miles)

  • Lowest 8 September, 2025

    48.9 °F

  • Average September

    63.4 °F

  • Highest 2 September, 2025

    79 °F

Climate (2020–Present)

Waterville, Waterville Robert LaFleur Airport (15.5 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    46.9 °F

  • Average High 2020–2025

    56 °F
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