Lake De Montreville Weather Forecast

    • 55
    • 68

    Slight Chance Rain Showers

    • 57
    • 72

    Mostly Cloudy

    • 57
    • 68

    Rain Showers

    • 55
    • 70

    Chance Rain Showers

    • 49
    • 67

    Partly Sunny

    • 48
    • 64

    Partly Sunny

Today 27 Sep Washington

Mostly cloudy. A 50 percent chance of rain Showers early in the morning. Highs in the upper 60s. South Winds up to 5 Mph.

Tonight 27 Sep Washington

Increasing Clouds. Patchy fog after midnight. Lows in the mid 50s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake De Montreville Temperature Statistics

September Temperature

Lake Elmo Airport (4.3 miles)

  • Lowest 14 September, 2026

    41 °F

  • Average September

    64.1 °F

  • Highest 1 September, 2026

    87.8 °F

Climate (2021–2026)

Lake Elmo Airport (4.3 miles)

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  • Average Low 2021–2026

    36.6 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    55.2 °F
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