St Marys River State Park Weather Forecast

    • 50
    • 60

    Increasing Clouds

    • 54
    • 74

    Rain Showers Likely

    • 56
    • 78

    Mostly Sunny

    • 53
    • 75

    Chance Rain Showers

    • 50
    • 65

    Rain Showers Likely

    • 47
    • 62

    Chance Rain Showers

    • 53
    • 67

    Partly Sunny

Today 21 Apr St. Marys

Sunny. Highs around 60. South Winds around 10 Mph.

Tonight 21 Apr St. Marys

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 50. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Marys River State Park Temperature Statistics

April Temperature

St Marys County Airport (3.1 miles)

  • Lowest 9 April, 2026

    31.1 °F

  • Average April

    62.5 °F

  • Highest 16 April, 2026

    90 °F

Climate (2021–Present)

St Marys County Airport (3.1 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    66.7 °F
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