Celina Weather Forecast

    • 62
    • 79

    Partly Sunny

    • 65
    • 80

    Partly Sunny

    • 63
    • 83

    Mostly Sunny

    • 59
    • 80

    Mostly Cloudy

    • 33
    • 68

    Mostly Cloudy

    • 28
    • 45

    Partly Sunny

Today 24 Dec Collin

Mostly cloudy this Morning, then clearing. Highs in the upper 70s. South Winds 5 to 10 Mph.

Tonight 24 Dec Collin

Partly cloudy. Lows in the lower 60s. South Winds 5 to 10 Mph.

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Celina Temperature Statistics

December Temperature

McKinney - McKinney National Airport (14.9 miles)

  • Lowest 15 December, 2025

    23 °F

  • Average December

    47.9 °F

  • Highest 20 December, 2025

    78.1 °F

Climate (2020–Present)

McKinney - McKinney National Airport (14.9 miles)

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  • Average Low 2020–2025

    56 °F

  • Average 2020–2025

    66.6 °F

  • Average High 2020–2025

    77.5 °F
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