Anna Weather Forecast

    • 64
    • 83

    Chance Thunderstorms

    • 67
    • 84

    Chance Rain Showers

    • 65
    • 87

    Rain Showers Likely

    • 59
    • 82

    Chance Rain Showers

    • 56
    • 81

    Mostly Sunny

    • 54
    • 78

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

Today 24 May Union

Mostly sunny with a chance of Showers and Thunderstorms. Highs in the lower 80s. South Winds around 10 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

Tonight 24 May Union

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the mid 60s. South Winds 5 to 10 Mph, becoming southwest after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Anna Temperature Statistics

May Temperature

Southern Illinois Airport (21.7 miles)

  • Lowest 12 May, 2024

    52.6 °F
  • Average May

    71.2 °F
  • Highest 19 May, 2024

    88.6 °F

Climate (2019–Present)

Southern Illinois Airport (21.7 miles)

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  • Average Low 2019–2024

    47.6 °F
  • Average 2019–2024

    57.5 °F
  • Average High 2019–2024

    68.2 °F
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