Sleeping Giant State Park Weather Forecast

    • 52
    • 65

    Rain Showers

    • 43
    • 64

    Rain Showers

    • 39
    • 60

    Mostly Sunny

    • 38
    • 59

    Mostly Sunny

    • 37
    • 57

    Partly Sunny

    • 36
    • 55

    Partly Sunny

    • 37
    • 56

    Mostly Cloudy

Today 21 Oct Northern New Haven

Sunny. Near steady temperature in the mid 60s. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 21 Oct Northern New Haven

Partly cloudy in the Evening, then cloudy with Showers after midnight. Lows in the lower 50s. South Winds 5 to 10 Mph. Chance of rain 90 percent.

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Sleeping Giant State Park Temperature Statistics

October Temperature

Meriden, Meriden Markham Municipal Airport (5.6 miles)

  • Lowest 10 October, 2025

    33.1 °F

  • Average October

    56.5 °F

  • Highest 5 October, 2025

    84 °F

Climate (2020–Present)

Meriden, Meriden Markham Municipal Airport (5.6 miles)

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  • Average Low 2020–2025

    43.3 °F

  • Average 2020–2025

    53.3 °F

  • Average High 2020–2025

    63.2 °F
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