Glen Carbon Weather Forecast

    • 69
    • 82

    Chance Thunderstorms

    • 72
    • 89

    Chance Thunderstorms

    • 70
    • 86

    Rain Showers Likely

    • 67
    • 85

    Mostly Sunny

    • 74
    • 89

    Mostly Sunny

    • 76
    • 95

    Mostly Sunny

Today 16 Jun Madison

Mostly cloudy. A slight chance of Showers and Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. Southeast Winds around 5 Mph. Chance of rain 50 percent.

Tonight 16 Jun Madison

Mostly cloudy with a slight chance of Showers and Thunderstorms. Near steady temperature around 70. Light and variable Winds. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Glen Carbon Temperature Statistics

June Temperature

St. Louis Regional Airport (9.9 miles)

  • Lowest 2 June, 2025

    55.6 °F

  • Average June

    68.3 °F

  • Highest 3 June, 2025

    86 °F

Climate (2020–Present)

St. Louis Regional Airport (9.9 miles)

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  • Average Low 2020–2025

    45.9 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    65.9 °F
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