Trimountain State Park Weather Forecast

    • 49
    • 73

    Chance Rain Showers

    • 45
    • 57

    Breezy

    • 55
    • 72

    Partly Sunny

    • 50
    • 71

    Chance Rain Showers

    • 51
    • 69

    Chance Rain Showers

    • 53
    • 70

    Chance Rain Showers

Today 29 May Northern Middlesex

Sunny this Morning, then becoming partly sunny. Highs in the mid 70s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 29 May Northern Middlesex

Mostly cloudy with a chance of Showers in the Evening, then Showers likely after midnight. Lows in the upper 40s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming northwest 10 to 15 Mph with Gusts up to 30 Mph after midnight. Chance of rain 70 percent.

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Trimountain State Park Temperature Statistics

May Temperature

Meriden, Meriden Markham Municipal Airport (6.2 miles)

  • Lowest 4 May, 2026

    35.1 °F

  • Average May

    59.4 °F

  • Highest 19 May, 2026

    90 °F

Climate (2021–Present)

Meriden, Meriden Markham Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.9 °F
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