Blairsville Weather Forecast

    • 16
    • 39

    Decreasing Clouds

    • 8
    • 21

    Mostly Cloudy

    • 12
    • 15

    Snow

    • 3
    • 17

    Slight Chance Snow

    • 8
    • 20

    Mostly Sunny

    • 18
    • 31

    Mostly Cloudy

Today 22 Jan Williamson

Mostly sunny. Highs around 40. North Winds around 5 Mph.

Tonight 22 Jan Williamson

Mostly clear in the Evening, then becoming partly cloudy. Lows around 17. Northeast Winds 5 to 10 Mph. Gusts up to 25 Mph after midnight.

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Blairsville Temperature Statistics

January Temperature

Southern Illinois Airport (6.8 miles)

  • Lowest 19 January, 2026

    9 °F

  • Average January

    38.1 °F

  • Highest 8 January, 2026

    68 °F

Climate (2021–Present)

Southern Illinois Airport (6.8 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    68.9 °F
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