Washington Weather Forecast

    • 75
    • 93

    Chance Thunderstorms

    • 76
    • 94

    Chance Thunderstorms

    • 75
    • 95

    Slight Chance Thunderstorms

    • 75
    • 94

    Slight Chance Thunderstorms

    • 75
    • 94

    Partly Sunny

    • 75
    • 94

    Slight Chance Thunderstorms

Today 10 Sep Washington

Partly sunny. A slight chance of Showers and Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. South Winds around 5 Mph. Chance of rain 40 percent.

Tonight 10 Sep Washington

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the mid 70s. South Winds around 5 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Washington Temperature Statistics

September Temperature

Brenham, Brenham Municipal Airport (14.3 miles)

  • Lowest 5 September, 2026

    74.3 °F

  • Average September

    83.4 °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

    70.7 °F

  • Average High 2021–2026

    81.7 °F
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