South Austin Weather Forecast

    • 18
    • 40

    Becoming Sunny

    • 23
    • 29

    Mostly Sunny

    • 37
    • 41

    Mostly Cloudy

    • 32
    • 45

    Mostly Cloudy

    • 43
    • 43

    Chance Rain

    • 40
    • 55

    Mostly Cloudy

Today 20 Dec Central Cook

Mostly cloudy. Breezy. Highs around 40. Southwest Winds 15 to 20 Mph, becoming west 10 to 15 Mph in the afternoon. Gusts up to 30 Mph.

Tonight 20 Dec Central Cook

Clear. Lows around 18. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

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South Austin Temperature Statistics

December Temperature

Chicago, Chicago Midway Airport (6.8 miles)

  • Lowest 14 December, 2025

    -0.9 °F

  • Average December

    24.5 °F

  • Highest 18 December, 2025

    52 °F

Climate (2020–Present)

Chicago, Chicago Midway Airport (6.8 miles)

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  • Average Low 2020–2025

    46.7 °F

  • Average 2020–2025

    54.3 °F

  • Average High 2020–2025

    61.8 °F
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