Williamson Airport Weather Forecast

    • 8
    • 16

    Increasing Clouds

    • 25
    • 31

    Increasing Clouds

    • 20
    • 39

    Partly Sunny

    • 5
    • 30

    Partly Sunny

    • -3
    • 11

    Mostly Cloudy

    • 0
    • 11

    Chance Snow

    • 6
    • 17

    Partly Sunny

Today 19 Jan Shelby

Sunny. Near steady temperature around 15. West Winds 15 to 20 Mph. Wind chill Values as low as 2 below.

Tonight 19 Jan Shelby

Partly cloudy. Near steady temperature around 9 above. Southwest Winds around 5 Mph.

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  • Temperature Real-Time

Williamson Airport Temperature Statistics

January Temperature

Taylorville, Taylorville Municipal Airport (24.9 miles)

  • Lowest 17 January, 2026

    11.8 °F

  • Average January

    35.3 °F

  • Highest 8 January, 2026

    63.3 °F

Climate (2021–Present)

Taylorville, Taylorville Municipal Airport (24.9 miles)

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  • Average Low 2021–2026

    45 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    64.2 °F
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