Herminie Weather Forecast

    • 63
    • 81

    Chance Thunderstorms

    • 57
    • 77

    Rain Showers Likely

    • 50
    • 76

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 49
    • 75

    Mostly Sunny

    • 51
    • 74

    Mostly Sunny

Today 26 May Westmoreland

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Warm. Near steady temperature around 80. South Winds around 5 Mph. Chance of rain 50 percent.

Tonight 26 May Westmoreland

Considerable cloudiness with a chance of Showers with a slight chance of Thunderstorms. Patchy fog after midnight. Warm with Lows in the lower 60s. Southwest Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Herminie Temperature Statistics

May Temperature

Pittsburgh - Allegheny County Airport (12.4 miles)

  • Lowest 2 May, 2026

    34 °F

  • Average May

    57.4 °F

  • Highest 18 May, 2026

    87.1 °F

Climate (2021–Present)

Pittsburgh - Allegheny County Airport (12.4 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    63.3 °F
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