Johnsons Mountain Lake Weather Forecast

    • 70
    • 89

    Mostly Cloudy

    • 74
    • 89

    Slight Chance Thunderstorms

    • 78
    • 90

    Slight Chance Thunderstorms

    • 77
    • 90

    Chance Thunderstorms

    • 75
    • 89

    Rain Showers Likely

    • 71
    • 84

    Rain Showers Likely

Today 15 May Washington

Partly sunny. Highs in the upper 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 15 May Washington

Mostly cloudy. Lows around 70. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnsons Mountain Lake Temperature Statistics

May Temperature

Brenham, Brenham Municipal Airport (12.4 miles)

  • Lowest 2 May, 2026

    48.7 °F

  • Average May

    70.2 °F

  • Highest 10 May, 2026

    88.9 °F

Climate (2021–Present)

Brenham, Brenham Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    60.9 °F

  • Average 2021–2026

    70.7 °F

  • Average High 2021–2026

    81.6 °F
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