Rosslyn Farms Weather Forecast

    • 14
    • 22

    Clearing Late

    • 27
    • 34

    Partly Sunny

    • 28
    • 41

    Mostly Cloudy

    • 23
    • 52

    Rain

    • 20
    • 30

    Slight Chance Rain

    • 36
    • 45

    Chance Rain

Today 15 Dec Allegheny

Considerable cloudiness. A chance of Flurries in the afternoon. Highs in the lower 20s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 15 Dec Allegheny

Mainly clear. Cold with Lows around 13. Southwest Winds 5 to 10 Mph.

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Rosslyn Farms Temperature Statistics

December Temperature

Pittsburgh - Allegheny County Airport (9.9 miles)

  • Lowest 9 December, 2025

    12.9 °F

  • Average December

    27.6 °F

  • Highest 10 December, 2025

    43 °F

Climate (2020–Present)

Pittsburgh - Allegheny County Airport (9.9 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    63.2 °F
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