Washington Weather Forecast

    • 77
    • 97

    Hot

    • 75
    • 96

    Chance Thunderstorms

    • 72
    • 95

    Mostly Sunny

    • 73
    • 95

    Mostly Sunny

    • 74
    • 95

    Mostly Sunny

    • 74
    • 94

    Chance Thunderstorms

Today 16 Sep Washington

Partly sunny. Hot with Highs in the upper 90s. Southeast Winds around 5 Mph. Heat index Values up to 105.

Tonight 16 Sep Washington

Partly cloudy. Lows in the upper 70s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.

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Washington Temperature Statistics

September Temperature

Brenham, Brenham Municipal Airport (14.3 miles)

  • Lowest 5 September, 2026

    74.3 °F

  • Average September

    83.7 °F

  • Highest 2 September, 2026

    100 °F

Climate (2021–2026)

Brenham, Brenham Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    60.9 °F

  • Average 2021–2026

    70.8 °F

  • Average High 2021–2026

    81.7 °F
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