St. Marys Weather Forecast

    • 60
    • 83

    Chance Thunderstorms

    • 57
    • 78

    Mostly Sunny

    • 60
    • 79

    Slight Chance Thunderstorms

    • 64
    • 82

    Rain Showers

    • 60
    • 79

    Rain Showers Likely

    • 59
    • 79

    Partly Sunny

Today 18 Jun Pleasants

Mostly cloudy with Showers with a chance of Thunderstorms in the Morning, then mostly sunny with a slight chance of Showers and Thunderstorms in the afternoon. Highs in the lower 80s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 90 percent.

Tonight 18 Jun Pleasants

Mostly cloudy. A slight chance of Showers in the evening. Cooler with Lows around 60. West Winds 5 to 10 Mph. Gusts up to 25 Mph in the evening. Chance of rain 20 percent.

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  • Temperature Real-Time

St. Marys Temperature Statistics

June Temperature

Parkersburg, Mid-Ohio Valley Regional Airport (13 miles)

  • Lowest 3 June, 2026

    47.6 °F

  • Average June

    71.7 °F

  • Highest 11 June, 2026

    89.7 °F

Climate (2021–2026)

Parkersburg, Mid-Ohio Valley Regional Airport (13 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    66.4 °F
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