Thornton Lake Weather Forecast

    • 54
    • 58

    Rain Showers

    • 43
    • 64

    Rain Showers

    • 38
    • 62

    Sunny

    • 46
    • 65

    Sunny

    • 52
    • 71

    Sunny

    • 49
    • 73

    Mostly Sunny

Today 29 Jan Fannin

Cloudy with Showers likely with a chance of Thunderstorms. Patchy fog. Highs in the upper 50s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 29 Jan Fannin

Thunderstorms likely. Showers. Patchy fog. Locally heavy rainfall possible after midnight. Lows in the mid 50s. Temperature rising into the upper 50s after midnight. Southeast Winds 5 to 10 Mph. Chance of rain near 100 percent.

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Thornton Lake Temperature Statistics

January Temperature

McKinney - McKinney National Airport (21.7 miles)

  • Lowest 20 January, 2025

    17.9 °F

  • Average January

    39.1 °F

  • Highest 5 January, 2025

    68.6 °F

Climate (2020–Present)

McKinney - McKinney National Airport (21.7 miles)

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  • Average Low 2020–2025

    55.7 °F

  • Average 2020–2025

    66.2 °F

  • Average High 2020–2025

    77 °F
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