Grindstone Weather Forecast

    • 59
    • 82

    Mostly Sunny

    • 56
    • 73

    Rain Showers

    • 57
    • 82

    Chance Rain Showers

    • 48
    • 70

    Slight Chance Rain Showers

    • 45
    • 71

    Mostly Sunny

    • 49
    • 74

    Mostly Sunny

Today 3 Sep Fayette

Mostly sunny. Near steady temperature in the upper 70s. Southwest Winds 5 to 10 Mph.

Tonight 3 Sep Fayette

Mainly clear. Lows around 60. South Winds 5 to 10 Mph.

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  • Temperature Real-Time

Grindstone Temperature Statistics

September Temperature

Pittsburgh - Allegheny County Airport (23.6 miles)

  • Lowest 1 September, 2025

    53.1 °F

  • Average September

    64.7 °F

  • Highest 1 September, 2025

    75 °F

Climate (2020–Present)

Pittsburgh - Allegheny County Airport (23.6 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    54.7 °F

  • Average High 2020–2025

    63.3 °F
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