Countyline Weather Forecast

    • 36
    • 48

    Partly Sunny

    • 25
    • 48

    Mostly Sunny

    • 32
    • 52

    Mostly Sunny

    • 40
    • 63

    Mostly Sunny

    • 37
    • 63

    Mostly Sunny

    • 32
    • 62

    Sunny

Today 6 Dec Stephens

Partly sunny. Areas of dense fog. Highs in the upper 40s. South Winds around 10 Mph.

Tonight 6 Dec Stephens

Partly cloudy. Areas of dense fog. Lows in the mid 30s. Southeast Winds around 5 Mph, becoming north with Gusts up to 20 Mph after midnight.

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Countyline Temperature Statistics

December Temperature

Duncan, Halliburton Field Airport (22.4 miles)

  • Lowest 2 December, 2025

    21.2 °F

  • Average December

    36.7 °F

  • Highest 3 December, 2025

    55.4 °F

Climate (2020–Present)

Duncan, Halliburton Field Airport (22.4 miles)

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  • Average Low 2020–2025

    52.2 °F

  • Average 2020–2025

    63.2 °F

  • Average High 2020–2025

    75 °F
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