Anna Weather Forecast

    • 28
    • 47

    Sunny

    • 30
    • 54

    Partly Sunny

    • 30
    • 47

    Mostly Cloudy

    • 31
    • 51

    Mostly Sunny

    • 33
    • 53

    Mostly Cloudy

    • 34
    • 53

    Mostly Cloudy

Today 11 Dec Union

Sunny. Highs in the upper 40s. South Winds 5 to 10 Mph.

Tonight 11 Dec Union

Clear. Lows in the upper 20s. South Winds 5 to 10 Mph.

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  • Temperature Real-Time

Anna Temperature Statistics

December Temperature

Southern Illinois Airport (21.7 miles)

  • Lowest 4 December, 2023

    31.7 °F
  • Average December

    47.2 °F
  • Highest 9 December, 2023

    62.1 °F

Climate (2018–Present)

Southern Illinois Airport (21.7 miles)

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  • Average Low 2018–2023

    47.6 °F
  • Average 2018–2023

    57.4 °F
  • Average High 2018–2023

    68 °F
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