Trimountain State Park Weather Forecast

    • 55
    • 75

    Chance Rain Showers

    • 41
    • 73

    Rain Showers Likely

    • 39
    • 45

    Chance Rain

    • 53
    • 63

    Mostly Cloudy

    • 50
    • 71

    Rain Showers Likely

    • 40
    • 64

    Rain Showers Likely

    • 34
    • 52

    Mostly Sunny

Today 31 Mar Northern Middlesex

Partly sunny with a 20 percent chance of Showers. Highs in the mid 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 31 Mar Northern Middlesex

Mostly cloudy. A slight chance of Showers and Thunderstorms this Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

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Trimountain State Park Temperature Statistics

March Temperature

Meriden, Meriden Markham Municipal Airport (6.2 miles)

  • Lowest 3 March, 2026

    12 °F

  • Average March

    40.1 °F

  • Highest 10 March, 2026

    75 °F

Climate (2021–Present)

Meriden, Meriden Markham Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    42.9 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.9 °F
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