Tarentum Weather Forecast

    • 70
    • 82

    Rain Showers

    • 59
    • 81

    Chance Rain Showers

    • 61
    • 81

    Mostly Sunny

    • 61
    • 81

    Rain Showers Likely

    • 56
    • 78

    Partly Sunny

    • 59
    • 78

    Partly Sunny

Today 16 Aug Allegheny

Showers. A chance of Thunderstorms this Morning, then Thunderstorms likely this afternoon. Some Thunderstorms may produce heavy rainfall this morning. Some Thunderstorms may produce heavy rainfall this afternoon. Highs in the lower 80s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain near 100 percent.

Tonight 16 Aug Allegheny

Showers with Thunderstorms likely in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall. Humid with Lows around 70. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain near 100 percent.

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Tarentum Temperature Statistics

August Temperature

Butler, Butler County Airport/K W Scholter Field (15.5 miles)

  • Lowest 4 August, 2026

    53.6 °F

  • Average August

    71.9 °F

  • Highest 5 August, 2026

    84 °F

Climate (2021–2026)

Butler, Butler County Airport/K W Scholter Field (15.5 miles)

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  • Average Low 2021–2026

    42 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    60.6 °F
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