Blairsville Weather Forecast

    • 71
    • 90

    Thunderstorms Likely

    • 67
    • 87

    Mostly Sunny

    • 68
    • 88

    Mostly Sunny

    • 71
    • 91

    Mostly Sunny

    • 72
    • 92

    Mostly Sunny

    • 74
    • 93

    Partly Sunny

Today 30 Jun Williamson

Mostly sunny. A chance of Showers with a slight chance of Thunderstorms this Morning, then Showers and Thunderstorms likely this afternoon. Highs around 90. West Winds 5 to 10 Mph. Chance of rain 60 percent.

Tonight 30 Jun Williamson

Showers and Thunderstorms Likely, mainly in the evening. Lows in the lower 70s. West Winds around 5 Mph. Chance of rain 60 percent.

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Blairsville Temperature Statistics

June Temperature

Southern Illinois Airport (6.8 miles)

  • Lowest 2 June, 2025

    59.6 °F

  • Average June

    77.6 °F

  • Highest 23 June, 2025

    94.6 °F

Climate (2020–Present)

Southern Illinois Airport (6.8 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    68.6 °F
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