Royal Lakes Weather Forecast

    • 30
    • 50

    Chance Rain

    • 39
    • 45

    Mostly Cloudy

    • 37
    • 59

    Mostly Cloudy

    • 31
    • 55

    Mostly Cloudy

    • 38
    • 45

    Mostly Cloudy

    • 40
    • 53

    Rain Likely

Today 31 Jan Macoupin

Widespread dense fog this morning. Mostly cloudy with a 50 percent chance of rain. Highs around 50. West Winds 10 to 15 Mph.

Tonight 31 Jan Macoupin

Mostly cloudy in the Evening, then becoming partly cloudy. Cooler with Lows around 30. North Winds 10 to 15 Mph.

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Royal Lakes Temperature Statistics

January Temperature

St. Louis Regional Airport (15.5 miles)

  • Lowest 21 January, 2025

    -0.4 °F

  • Average January

    23.6 °F

  • Highest 28 January, 2025

    50 °F

Climate (2020–Present)

St. Louis Regional Airport (15.5 miles)

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  • Average Low 2020–2025

    45.8 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    65.7 °F
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