Tarentum Weather Forecast

    • 38
    • 66

    Areas Fog

    • 45
    • 69

    Areas Fog

    • 45
    • 68

    Partly Sunny

    • 47
    • 71

    Partly Sunny

    • 49
    • 73

    Partly Sunny

    • 48
    • 73

    Partly Sunny

    • 54
    • 72

    Mostly Cloudy

Today 25 Oct Allegheny

Mostly cloudy with a 50 percent chance of Showers. Highs in the upper 60s.

Tonight 25 Oct Allegheny

Mainly clear. Areas of fog after midnight. Lows in the upper 30s. South Winds around 5 Mph this Evening, becoming light and variable.

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Tarentum Temperature Statistics

October Temperature

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

  • Lowest 18 October, 2026

    28 °F

  • Average October

    55.3 °F

  • Highest 1 October, 2026

    82 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    60.6 °F
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