Chappell Hill Weather Forecast

    • 76
    • 94

    Slight Chance Thunderstorms

    • 73
    • 93

    Rain Showers

    • 71
    • 85

    Rain Showers

    • 69
    • 84

    Rain Showers

    • 69
    • 82

    Chance Thunderstorms

    • 66
    • 83

    Slight Chance Rain Showers

    • 64
    • 83

    Partly Sunny

Today 30 Sep Washington

Partly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the lower 90s. Southeast Winds around 15 Mph with Gusts up to 30 Mph. Chance of rain 20 percent. Heat index Values up to 105.

Tonight 30 Sep Washington

Partly cloudy. A slight chance of Showers after midnight. Lows in the mid 70s. Southeast Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chappell Hill Temperature Statistics

September Temperature

Brenham, Brenham Municipal Airport (8.7 miles)

  • Lowest 26 September, 2026

    65.1 °F

  • Average September

    83.3 °F

  • Highest 2 September, 2026

    100 °F

Climate (2021–2026)

Brenham, Brenham Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    61 °F

  • Average 2021–2026

    70.8 °F

  • Average High 2021–2026

    81.8 °F
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