Thornhill Weather Forecast

    • 50
    • 78

    Chance Rain Showers

    • 49
    • 68

    Chance Rain Showers

    • 47
    • 65

    Rain Showers Likely

    • 40
    • 65

    Mostly Sunny

    • 46
    • 69

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

Today 29 Apr Marion

Mostly cloudy with a slight chance of Showers and Thunderstorms. Highs in the upper 70s. Northwest Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 29 Apr Marion

A chance of Thunderstorms in the evening. Cloudy with a chance of Showers. Cooler with Lows in the lower 50s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thornhill Temperature Statistics

April Temperature

Haleyville, Posey Field Airport (8.7 miles)

  • Lowest 7 April, 2026

    41 °F

  • Average April

    65.2 °F

  • Highest 17 April, 2026

    84.9 °F

Climate (2021–Present)

Haleyville, Posey Field Airport (8.7 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    61.1 °F

  • Average High 2021–2026

    72 °F
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