Clear Lake Weather Forecast

    • 73
    • 89

    Chance Rain Showers

    • 73
    • 93

    Chance Thunderstorms

    • 73
    • 94

    Slight Chance Thunderstorms

    • 74
    • 95

    Slight Chance Thunderstorms

    • 74
    • 96

    Slight Chance Thunderstorms

    • 73
    • 96

    Slight Chance Thunderstorms

    • 73
    • 94

    Slight Chance Thunderstorms

Today 3 Sep Brazos

Showers likely with a chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Near steady temperature in the upper 80s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 3 Sep Brazos

Mostly cloudy. A slight chance of Showers and Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Humid with Lows in the mid 70s. Southeast Winds 5 to 10 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

September Temperature

Bryan Coulter Field (9.3 miles)

  • Lowest 1 September, 2026

    75.6 °F

  • Average September

    85.7 °F

  • Highest 1 September, 2026

    97.5 °F

Climate (2021–2026)

Bryan Coulter Field (9.3 miles)

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  • Average Low 2021–2026

    60.2 °F

  • Average 2021–2026

    70 °F

  • Average High 2021–2026

    80.8 °F
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