Sleeping Giant State Park Weather Forecast

    • 46
    • 64

    Rain Showers

    • 41
    • 58

    Rain Showers

    • 38
    • 59

    Partly Sunny

    • 38
    • 57

    Partly Sunny

    • 39
    • 57

    Partly Sunny

    • 41
    • 59

    Slight Chance Rain Showers

Today 29 Apr Northern New Haven

Mostly sunny. Highs in the mid 60s. Northeast Winds around 5 Mph, becoming south in the afternoon.

Tonight 29 Apr Northern New Haven

Showers. Lows in the mid 40s. Southeast Winds 5 to 10 Mph. Chance of rain 90 percent.

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Sleeping Giant State Park Temperature Statistics

April Temperature

Meriden, Meriden Markham Municipal Airport (5.6 miles)

  • Lowest 9 April, 2026

    26.1 °F

  • Average April

    51.6 °F

  • Highest 15 April, 2026

    84.9 °F

Climate (2021–Present)

Meriden, Meriden Markham Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    63 °F
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