Stephenville Weather Forecast

    • 63
    • 98

    Chance Thunderstorms

    • 64
    • 76

    Chance Rain Showers

    • 64
    • 81

    Chance Thunderstorms

    • 64
    • 85

    Mostly Sunny

    • 64
    • 88

    Mostly Sunny

    • 65
    • 90

    Mostly Sunny

Today 5 Sep Erath

Mostly cloudy. Hot with Highs in the upper 90s. Southwest Winds 5 to 10 Mph.

Tonight 5 Sep Erath

Mostly cloudy with a chance of Showers. A chance of Thunderstorms in the Evening, then a slight chance of Thunderstorms after midnight. Cooler with Lows in the mid 60s. North Winds around 5 Mph. Chance of rain 40 percent.

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Stephenville Temperature Statistics

September Temperature

Stephenville, Clark Field Municipal Airport (0.6 miles)

  • Lowest 2 September, 2025

    66.7 °F

  • Average September

    78.3 °F

  • Highest 2 September, 2025

    90.5 °F

Climate (2020–Present)

Stephenville, Clark Field Municipal Airport (0.6 miles)

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  • Average Low 2020–2025

    55.4 °F

  • Average 2020–2025

    66.6 °F

  • Average High 2020–2025

    78.6 °F
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