Blairsville Weather Forecast

    • 57
    • 80

    Increasing Clouds

    • 56
    • 75

    Rain Showers Likely

    • 55
    • 66

    Rain Showers Likely

    • 60
    • 70

    Chance Rain Showers

    • 54
    • 73

    Rain Showers Likely

    • 49
    • 69

    Rain Showers Likely

Today 30 Oct Williamson

Mostly sunny. Highs around 80. East Winds around 5 Mph.

Tonight 30 Oct Williamson

Mostly cloudy. Lows in the upper 50s. East Winds around 5 Mph.

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Blairsville Temperature Statistics

October Temperature

Southern Illinois Airport (6.8 miles)

  • Lowest 18 October, 2026

    34.6 °F

  • Average October

    64.5 °F

  • Highest 1 October, 2026

    93.7 °F

Climate (2021–2026)

Southern Illinois Airport (6.8 miles)

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    59 °F

  • Average High 2021–2026

    69.6 °F
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