Summers Weather Forecast

    • 60
    • 84

    Increasing Clouds

    • 60
    • 86

    Mostly Cloudy

    • 65
    • 87

    Mostly Cloudy

    • 67
    • 88

    Mostly Cloudy

    • 67
    • 90

    Slight Chance Thunderstorms

    • 67
    • 89

    Chance Rain Showers

Today 23 Sep Washington

Sunny. Highs in the lower 80s. Northeast Winds 5 to 10 Mph.

Tonight 23 Sep Washington

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summers Temperature Statistics

September Temperature

Siloam Springs, Smith Field Airport (14.9 miles)

  • Lowest 13 September, 2026

    69.1 °F

  • Average September

    84.5 °F

  • Highest 8 September, 2026

    102 °F

Climate (2021–2026)

Siloam Springs, Smith Field Airport (14.9 miles)

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  • Average Low 2021–2026

    50.4 °F

  • Average 2021–2026

    60.4 °F

  • Average High 2021–2026

    70.8 °F
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