McKees Rocks Weather Forecast

    • 57
    • 65

    Rain Showers

    • 54
    • 65

    Rain Showers Likely

    • 52
    • 64

    Rain Showers Likely

    • 48
    • 65

    Slight Chance Rain Showers

    • 49
    • 68

    Partly Sunny

    • 50
    • 69

    Partly Sunny

Today 21 Sep Allegheny

Showers with a slight chance of Thunderstorms this Morning, then Showers likely with a slight chance of Thunderstorms this afternoon. Patchy fog. Some Thunderstorms may produce heavy rainfall this morning. Highs in the mid 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 21 Sep Allegheny

Cloudy. Showers likely with a slight chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows in the mid 50s. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

McKees Rocks Temperature Statistics

September Temperature

Pittsburgh - Allegheny County Airport (10.6 miles)

  • Lowest 15 September, 2026

    53.1 °F

  • Average September

    72 °F

  • Highest 2 September, 2026

    91 °F

Climate (2021–2026)

Pittsburgh - Allegheny County Airport (10.6 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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