First Connecticut Lake Weather Forecast

    • 44
    • 68

    Rain Showers

    • 43
    • 69

    Mostly Sunny

    • 46
    • 73

    Mostly Sunny

    • 49
    • 77

    Partly Sunny

    • 51
    • 77

    Partly Sunny

    • 44
    • 72

    Partly Sunny

Today 14 Sep Northern Coos

Patchy fog in the morning. Partly sunny with isolated Showers. Highs in the upper 60s. Light and variable Winds. Chance of rain 20 percent.

Tonight 14 Sep Northern Coos

Mostly clear. Patchy fog after midnight. Lows in the lower 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

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First Connecticut Lake Temperature Statistics

September Temperature

Berlin, Berlin Municipal Airport (35.4 miles)

  • Lowest 9 September, 2025

    36 °F

  • Average September

    58.3 °F

  • Highest 2 September, 2025

    80.1 °F

Climate (2020–Present)

Berlin, Berlin Municipal Airport (35.4 miles)

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  • Average Low 2020–2025

    32.6 °F

  • Average 2020–2025

    44.2 °F

  • Average High 2020–2025

    55.9 °F
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