Thornton Lake Weather Forecast

    • 63
    • 86

    Sunny

    • 69
    • 91

    Mostly Sunny

    • 70
    • 91

    Breezy

    • 72
    • 89

    Breezy

    • 72
    • 90

    Mostly Sunny

    • 68
    • 90

    Slight Chance Thunderstorms

Today 27 May Fannin

Sunny. Highs in the mid 80s. Northeast Winds around 5 Mph.

Tonight 27 May Fannin

Clear. Lows in the lower 60s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thornton Lake Temperature Statistics

May Temperature

McKinney - McKinney National Airport (21.7 miles)

  • Lowest 1 May, 2022

    51.1 °F
  • Average May

    74.3 °F
  • Highest 18 May, 2022

    91.9 °F

Climate (2010–Present)

McKinney - McKinney National Airport (21.7 miles)

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  • Average Low 2010–Present

    54.3 °F
  • Average 2010–Present

    64.4 °F
  • Average High 2010–Present

    75 °F
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