Inter County Airport Weather Forecast

    • 19
    • 32

    Increasing Clouds

    • 13
    • 35

    Snow

    • 14
    • 19

    Chance Snow

    • 15
    • 23

    Mostly Cloudy

    • 24
    • 32

    Mostly Cloudy

    • 35
    • 42

    Mostly Cloudy

Today 12 Dec Westmoreland

Partly sunny in the Morning, then becoming partly cloudy. Highs in the lower 30s. Southwest Winds around 5 Mph.

Tonight 12 Dec Westmoreland

Mainly clear in the Evening, then mostly cloudy with a slight chance of freezing drizzle with isolated snow Showers after midnight. Lows around 18. Temperatures rising into the mid 20s after midnight. Southeast Winds around 5 Mph, becoming southwest after midnight. Chance of precipitation 20 percent.

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Inter County Airport Temperature Statistics

December Temperature

Pittsburgh - Allegheny County Airport (7.5 miles)

  • Lowest 9 December, 2025

    12.9 °F

  • Average December

    27.1 °F

  • Highest 7 December, 2025

    36 °F

Climate (2020–Present)

Pittsburgh - Allegheny County Airport (7.5 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    63.3 °F
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