Dunn Lake Weather Forecast

    • 70
    • 92

    Slight Chance Thunderstorms

    • 68
    • 93

    Mostly Sunny

    • 69
    • 93

    Partly Sunny

    • 71
    • 92

    Slight Chance Thunderstorms

    • 70
    • 90

    Chance Thunderstorms

    • 68
    • 87

    Chance Thunderstorms

Today 18 Sep Austin

Sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Northwest Winds around 5 Mph, becoming southeast this afternoon. Chance of rain 20 percent.

Tonight 18 Sep Austin

Partly cloudy. Lows in the upper 60s. South Winds 5 to 10 Mph.

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Dunn Lake Temperature Statistics

September Temperature

Brenham, Brenham Municipal Airport (13.7 miles)

  • Lowest 9 September, 2025

    59.9 °F

  • Average September

    78.8 °F

  • Highest 4 September, 2025

    97.9 °F

Climate (2020–Present)

Brenham, Brenham Municipal Airport (13.7 miles)

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  • Average Low 2020–2025

    60.4 °F

  • Average 2020–2025

    70.2 °F

  • Average High 2020–2025

    81 °F
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