Lake De Montreville Weather Forecast

    • 47
    • 68

    Becoming Sunny

    • 55
    • 63

    Rain Showers

    • 50
    • 66

    Partly Sunny

    • 53
    • 66

    Mostly Cloudy

    • 52
    • 69

    Chance Rain Showers

    • 52
    • 68

    Chance Rain Showers

Today 13 Sep Washington

Mostly cloudy in the morning then clearing. Highs in the upper 60s. Northwest Winds up to 5 Mph increasing to around 10 Mph in the afternoon.

Tonight 13 Sep Washington

Clear. Lows in the upper 40s. North Winds up to 5 Mph shifting to the southeast after midnight.

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  • Temperature Real-Time

Lake De Montreville Temperature Statistics

September Temperature

Lake Elmo Airport (4.3 miles)

  • Lowest 10 September, 2026

    48.2 °F

  • Average September

    71.7 °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

    55.3 °F
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