Myrtle Lake Weather Forecast

    • 52
    • 68

    Rain Showers Likely

    • 39
    • 69

    Slight Chance Rain Showers

    • 50
    • 67

    Rain Showers

    • 45
    • 64

    Rain Showers Likely

    • 45
    • 68

    Chance Rain Showers

    • 36
    • 64

    Mostly Cloudy

Today 26 Sep North St. Louis

Mostly cloudy. A chance of Showers this afternoon. Highs in the upper 60s. Southeast Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 26 Sep North St. Louis

Showers likely. Lows in the lower 50s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Myrtle Lake Temperature Statistics

September Temperature

Orr Regional Airport (8.7 miles)

  • Lowest 22 September, 2026

    32.2 °F

  • Average September

    58.7 °F

  • Highest 6 September, 2026

    81.5 °F

Climate (2021–2026)

Orr Regional Airport (8.7 miles)

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  • Average Low 2021–2026

    29.4 °F

  • Average 2021–2026

    40 °F

  • Average High 2021–2026

    49.8 °F
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