Blairsville Weather Forecast

    • 57
    • 81

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

    • 62
    • 79

    Chance Thunderstorms

    • 52
    • 76

    Rain Showers Likely

    • 43
    • 64

    Mostly Sunny

    • 50
    • 70

    Mostly Sunny

    • 47
    • 73

    Mostly Sunny

Today 15 Oct Williamson

Sunny. Near steady temperature in the upper 70s. Northeast Winds around 5 Mph.

Tonight 15 Oct Williamson

Mostly clear. Lows in the upper 50s. East Winds around 5 Mph in the Evening, becoming light and variable.

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Blairsville Temperature Statistics

October Temperature

Southern Illinois Airport (6.8 miles)

  • Lowest 10 October, 2025

    41 °F

  • Average October

    66.1 °F

  • Highest 1 October, 2025

    87.8 °F

Climate (2020–Present)

Southern Illinois Airport (6.8 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.2 °F

  • Average High 2020–2025

    68.8 °F
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