Granite City Weather Forecast

    • 57
    • 77

    Chance Thunderstorms

    • 52
    • 69

    Chance Rain Showers

    • 47
    • 63

    Chance Rain Showers

    • 48
    • 68

    Slight Chance Rain Showers

    • 50
    • 71

    Mostly Sunny

    • 55
    • 78

    Partly Sunny

Today 1 May Madison

Mostly cloudy late this Morning, then becoming partly sunny. A chance of Showers. A slight chance of Thunderstorms late this Morning, then a chance of Thunderstorms this afternoon. Highs in the mid 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 1 May Madison

Mostly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the mid 50s. West Winds 5 to 10 Mph. Chance of rain 40 percent.

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Granite City Temperature Statistics

May Temperature

St. Louis Downtown Airport (9.3 miles)

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Climate (2020–Present)

St. Louis Downtown Airport (9.3 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    57.7 °F

  • Average High 2020–2025

    68.3 °F
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