Thornton Weather Forecast

    • 60
    • 83

    Mostly Cloudy

    • 59
    • 79

    Mostly Cloudy

    • 58
    • 79

    Partly Sunny

    • 58
    • 83

    Mostly Sunny

    • 59
    • 84

    Mostly Sunny

    • 61
    • 85

    Slight Chance Rain Showers

    • 60
    • 82

    Chance Rain Showers

Today 15 Sep Letcher

Partly cloudy with a 20 percent chance of Showers. Highs in the mid 80s. North Winds around 5 Mph.

Tonight 15 Sep Letcher

Partly cloudy with a 20 percent chance of Showers. Areas of valley fog. Lows in the upper 50s. Southeast Winds around 5 Mph.

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Thornton Temperature Statistics

September Temperature

Pikeville Pike County Airport and Hatcher Field (28.6 miles)

  • Lowest 8 September, 2025

    48.7 °F

  • Average September

    65.6 °F

  • Highest 5 September, 2025

    83.5 °F

Climate (2020–Present)

Pikeville Pike County Airport and Hatcher Field (28.6 miles)

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  • Average Low 2020–2025

    48.8 °F

  • Average 2020–2025

    57.1 °F

  • Average High 2020–2025

    66.3 °F
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