Rock Lake Weather Forecast

    • 54
    • 82

    Mostly Sunny

    • 55
    • 81

    Chance Thunderstorms

    • 52
    • 80

    Chance Thunderstorms

    • 52
    • 72

    Slight Chance Thunderstorms

    • 55
    • 79

    Slight Chance Thunderstorms

    • 55
    • 81

    Mostly Sunny

Today 15 Sep Guadalupe County

Sunny. Highs in the lower 80s.

Tonight 15 Sep Guadalupe County

Mostly clear. Areas of fog after midnight. Lows in the mid 50s. South Winds around 15 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rock Lake Temperature Statistics

September Temperature

Clines Corners (56.5 miles)

  • Lowest 5 September, 2025

    48.9 °F

  • Average September

    63.1 °F

  • Highest 3 September, 2025

    82 °F

Climate (2020–Present)

Clines Corners (56.5 miles)

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  • Average Low 2020–2025

    37.6 °F

  • Average 2020–2025

    50.3 °F

  • Average High 2020–2025

    63.8 °F
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