Bear Brook State Park Weather Forecast

    • 24
    • 38

    Snow/Sleet

    • 28
    • 34

    Snow/Sleet Likely

    • 41
    • 48

    Chance Rain

    • 31
    • 52

    Partly Sunny

    • 38
    • 57

    Mostly Sunny

    • 36
    • 62

    Chance Rain

Today 5 Mar Merrimack

Mostly cloudy. A slight chance of snow this afternoon. Highs in the upper 30s. Light and variable Winds, becoming east around 10 Mph with Gusts up to 20 Mph this afternoon. Chance of snow 20 percent.

Tonight 5 Mar Merrimack

Snow, freezing rain and sleet likely in the Evening, then snow with a slight chance of sleet after midnight. Snow and sleet accumulation of 1 to 3 Inches. Ice accumulation around a trace. Lows in the lower 20s. East Winds around 10 Mph with Gusts up to 20 Mph. Chance of precipitation near 100 percent.

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Bear Brook State Park Temperature Statistics

March Temperature

Concord Municipal Airport (8.7 miles)

  • Lowest 2 March, 2026

    0 °F

  • Average March

    18.7 °F

  • Highest 1 March, 2026

    33.7 °F

Climate (2021–Present)

Concord Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    49.1 °F

  • Average High 2021–2026

    60 °F
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