Prosper Weather Forecast

    • 54
    • 81

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

    • 58
    • 80

    Sunny

    • 59
    • 82

    Mostly Sunny

    • 60
    • 83

    Partly Sunny

    • 61
    • 82

    Partly Sunny

    • 60
    • 81

    Partly Sunny

Today 19 Oct Collin

Mostly sunny. Highs around 80.

Tonight 19 Oct Collin

Clear. Lows in the lower 50s. East Winds around 5 Mph.

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Prosper Temperature Statistics

October Temperature

McKinney - McKinney National Airport (12.4 miles)

  • Lowest 17 October, 2026

    46 °F

  • Average October

    73.7 °F

  • Highest 13 October, 2026

    93.7 °F

Climate (2021–2026)

McKinney - McKinney National Airport (12.4 miles)

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  • Average Low 2021–2026

    56.8 °F

  • Average 2021–2026

    67.6 °F

  • Average High 2021–2026

    78.6 °F
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