Johnson Lake Weather Forecast

    • 68
    • 83

    Decreasing Clouds

    • 69
    • 84

    Mostly Cloudy

    • 69
    • 87

    Partly Sunny

    • 70
    • 87

    Mostly Cloudy

    • 56
    • 84

    Chance Thunderstorms

    • 57
    • 74

    Slight Chance Rain Showers

Today 14 Apr Washington

Mostly cloudy in the Morning, then becoming partly sunny. Highs in the mid 80s. South Winds 10 to 15 Mph.

Tonight 14 Apr Washington

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 60s. South Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnson Lake Temperature Statistics

April Temperature

Brenham, Brenham Municipal Airport (6.2 miles)

  • Lowest 7 April, 2026

    43.9 °F

  • Average April

    68.5 °F

  • Highest 1 April, 2026

    85.5 °F

Climate (2021–Present)

Brenham, Brenham Municipal Airport (6.2 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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