Arena Lake Weather Forecast

    • 75
    • 99

    Hot

    • 74
    • 99

    Slight Chance Thunderstorms

    • 74
    • 98

    Slight Chance Thunderstorms

    • 75
    • 98

    Hot

    • 74
    • 99

    Hot

    • 74
    • 98

    Hot

    • 73
    • 96

    Mostly Sunny

Today 8 Sep Somervell

Sunny, hot with Highs around 101. Southeast Winds around 10 Mph. Heat index Values up to 105.

Tonight 8 Sep Somervell

Mostly clear. Lows in the upper 70s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Arena Lake Temperature Statistics

September Temperature

Stephenville, Clark Field Municipal Airport (20.5 miles)

  • Lowest 5 September, 2026

    71.7 °F

  • Average September

    86.8 °F

  • Highest 2 September, 2026

    101.6 °F

Climate (2021–2026)

Stephenville, Clark Field Municipal Airport (20.5 miles)

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  • Average Low 2021–2026

    56.1 °F

  • Average 2021–2026

    67.8 °F

  • Average High 2021–2026

    80 °F
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