Royal Lakes Weather Forecast

    • 72
    • 91

    Chance Thunderstorms

    • 61
    • 93

    Rain Showers

    • 61
    • 82

    Mostly Sunny

    • 66
    • 85

    Rain Showers

    • 58
    • 77

    Chance Rain Showers

    • 57
    • 74

    Partly Sunny

    • 60
    • 78

    Slight Chance Thunderstorms

Today 10 Jun Macoupin

Mostly sunny. Near steady temperature around 90. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 10 Jun Macoupin

A chance of Thunderstorms. Showers likely. Lows in the lower 70s. Southwest Winds 10 to 15 Mph. Chance of rain 70 percent. Heat index Values up to 100 early this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Royal Lakes Temperature Statistics

June Temperature

St. Louis Regional Airport (15.5 miles)

  • Lowest 3 June, 2026

    52.5 °F

  • Average June

    72.6 °F

  • Highest 6 June, 2026

    87.8 °F

Climate (2021–Present)

St. Louis Regional Airport (15.5 miles)

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  • Average Low 2021–2026

    46.5 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    66.7 °F
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