Lake Massasecum Weather Forecast

    • 55
    • 79

    Decreasing Clouds

    • 55
    • 81

    Rain Showers Likely

    • 53
    • 72

    Rain Showers

    • 55
    • 70

    Rain Showers Likely

    • 56
    • 71

    Chance Rain Showers

    • 53
    • 73

    Chance Rain Showers

Today 30 Aug Merrimack

Partly sunny late this Morning, then becoming mostly cloudy. Isolated Showers this afternoon. Highs in the upper 70s. West Winds around 10 Mph. Chance of rain 20 percent.

Tonight 30 Aug Merrimack

Partly cloudy in the Evening, then clearing. Lows in the mid 50s. West Winds around 10 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Massasecum Temperature Statistics

August Temperature

Concord Municipal Airport (20.5 miles)

  • Lowest 16 August, 2026

    48.7 °F

  • Average August

    73.1 °F

  • Highest 6 August, 2026

    93.7 °F

Climate (2021–2026)

Concord Municipal Airport (20.5 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    49.2 °F

  • Average High 2021–2026

    60.2 °F
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