Anna Weather Forecast

    • 62
    • 79

    Decreasing Clouds

    • 52
    • 83

    Rain Showers

    • 44
    • 65

    Sunny

    • 53
    • 70

    Chance Thunderstorms

    • 43
    • 68

    Mostly Sunny

    • 44
    • 65

    Mostly Sunny

Today 17 Oct Union

Partly sunny. Highs around 80. South Winds around 5 Mph.

Tonight 17 Oct Union

Partly cloudy in the Evening, then clearing. Lows in the lower 60s. South Winds around 5 Mph.

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Anna Temperature Statistics

October Temperature

Southern Illinois Airport (21.7 miles)

  • Lowest 10 October, 2025

    41 °F

  • Average October

    66 °F

  • Highest 1 October, 2025

    87.8 °F

Climate (2020–Present)

Southern Illinois Airport (21.7 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.2 °F

  • Average High 2020–2025

    68.8 °F
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