Allen Weather Forecast

    • 57
    • 70

    Mostly Cloudy

    • 35
    • 71

    Mostly Cloudy

    • 31
    • 45

    Chance Rain

    • 34
    • 55

    Mostly Sunny

    • 36
    • 54

    Partly Sunny

    • 38
    • 56

    Partly Sunny

Today 8 Dec Collin

Partly sunny. Highs in the upper 60s. South Winds 10 to 15 Mph increasing to 15 to 20 Mph in the afternoon.

Tonight 8 Dec Collin

Mostly cloudy. Not as cool with Lows in the upper 50s. South Winds 15 to 20 Mph becoming southwest 10 to 15 Mph after midnight.

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Allen Temperature Statistics

December Temperature

Mc Kinney, Collin County Regional Airport at Mc Kinney (6.8 miles)

  • Lowest 3 December, 2019

    35.1 °F

  • Average December

    50.7 °F

  • Highest 5 December, 2019

    71.1 °F

Climate (2010–Present)

Mc Kinney, Collin County Regional Airport at Mc Kinney (6.8 miles)

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  • Average Low 2010–Present

    56 °F

  • Average 2010–Present

    65.8 °F

  • Average High 2010–Present

    76 °F
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