Larimer Weather Forecast

    • 57
    • 78

    Decreasing Clouds

    • 55
    • 79

    Becoming Sunny

    • 56
    • 81

    Mostly Sunny

    • 62
    • 83

    Partly Sunny

    • 68
    • 87

    Chance Rain Showers

    • 57
    • 80

    Chance Rain Showers

    • 55
    • 77

    Mostly Sunny

Today 5 Sep Westmoreland

Partly sunny with a chance of Showers with a slight chance of Thunderstorms. Near steady temperature in the upper 70s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 5 Sep Westmoreland

Mainly clear. Lows in the mid 50s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Larimer Temperature Statistics

September Temperature

Pittsburgh - Allegheny County Airport (9.9 miles)

  • Lowest 3 September, 2026

    66 °F

  • Average September

    78.1 °F

  • Highest 2 September, 2026

    91 °F

Climate (2021–2026)

Pittsburgh - Allegheny County Airport (9.9 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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