Anna Weather Forecast

    • 56
    • 77

    Becoming Sunny

    • 61
    • 81

    Chance Thunderstorms

    • 73
    • 86

    Rain Showers

    • 62
    • 83

    Rain Showers

    • 61
    • 81

    Mostly Sunny

    • 65
    • 83

    Partly Sunny

Today 15 Jun Union

Sunny. Highs in the upper 70s. Northwest Winds around 5 Mph.

Tonight 15 Jun Union

Mostly clear. Near steady temperature in the upper 50s. Calm Winds.

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Anna Temperature Statistics

June Temperature

Southern Illinois Airport (21.7 miles)

  • Lowest 3 June, 2026

    51.7 °F

  • Average June

    77.1 °F

  • Highest 11 June, 2026

    94.6 °F

Climate (2021–Present)

Southern Illinois Airport (21.7 miles)

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  • Average Low 2021–2026

    48.1 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    69.3 °F
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