Bush Weather Forecast

    • 59
    • 93

    Mostly Sunny

    • 65
    • 94

    Mostly Sunny

    • 64
    • 91

    Slight Chance Thunderstorms

    • 64
    • 89

    Chance Thunderstorms

    • 65
    • 86

    Chance Rain Showers

    • 64
    • 83

    Chance Rain Showers

    • 62
    • 87

    Slight Chance Thunderstorms

Today 17 Sep Williamson

Sunny. Near steady temperature in the lower 90s. North Winds around 5 Mph.

Tonight 17 Sep Williamson

Clear. Lows in the lower 60s. Calm Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bush Temperature Statistics

September Temperature

Southern Illinois Airport (7.5 miles)

  • Lowest 8 September, 2025

    41 °F

  • Average September

    70.1 °F

  • Highest 14 September, 2025

    97 °F

Climate (2020–Present)

Southern Illinois Airport (7.5 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    68.7 °F
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