Arnold Weather Forecast

    • 67
    • 84

    Chance Rain Showers

    • 48
    • 77

    Rain Showers

    • 52
    • 71

    Chance Rain Showers

    • 53
    • 67

    Rain Showers

    • 58
    • 70

    Rain Showers

    • 60
    • 79

    Rain Showers Likely

    • 61
    • 81

    Chance Rain Showers

Today 19 May Westmoreland

Partly cloudy with a slight chance of Showers and Thunderstorms. Unseasonably warm with Highs in the upper 80s. Southwest Winds around 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 19 May Westmoreland

Partly cloudy with a slight chance of Showers and Thunderstorms. Warm with Lows in the upper 60s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

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Arnold Temperature Statistics

May Temperature

Butler, Butler County Airport/K W Scholter Field (16.8 miles)

  • Lowest 1 May, 2026

    30.9 °F

  • Average May

    53.1 °F

  • Highest 17 May, 2026

    84 °F

Climate (2021–Present)

Butler, Butler County Airport/K W Scholter Field (16.8 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.9 °F
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