Harmon Weather Forecast

    • 73
    • 102

    Chance Thunderstorms

    • 72
    • 100

    Slight Chance Thunderstorms

    • 74
    • 100

    Hot

    • 73
    • 100

    Hot

    • 68
    • 92

    Chance Thunderstorms

    • 69
    • 92

    Slight Chance Thunderstorms

    • 69
    • 95

    Slight Chance Thunderstorms

Today 6 Sep Washington

Mostly sunny with a chance of Showers and Thunderstorms. Hot with Highs around 101. Temperature falling into the lower 90s late. Southeast Winds around 5 Mph. Chance of rain 50 percent.

Tonight 6 Sep Washington

Mostly clear. A slight chance of Showers and Thunderstorms in the evening. Lows in the mid 70s. Southeast Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harmon Temperature Statistics

September Temperature

Springdale Municipal (9.3 miles)

  • Lowest 3 September, 2026

    75.2 °F

  • Average September

    90 °F

  • Highest 1 September, 2026

    98.6 °F

Climate (2021–2026)

Springdale Municipal (9.3 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    70.7 °F
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