Square Lake Weather Forecast

    • 43
    • 66

    Decreasing Clouds

    • 48
    • 65

    Mostly Cloudy

    • 47
    • 69

    Chance Rain Showers

    • 53
    • 76

    Slight Chance Thunderstorms

    • 58
    • 83

    Mostly Sunny

    • 60
    • 85

    Slight Chance Thunderstorms

Today 21 May Washington

Mostly cloudy then becoming mostly sunny early in the afternoon then becoming sunny. Highs in the mid 60s. Southeast Winds up to 10 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 21 May Washington

Increasing Clouds. Lows in the mid 40s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Square Lake Temperature Statistics

May Temperature

Lake Elmo Airport (10.6 miles)

  • Lowest 6 May, 2026

    28.4 °F

  • Average May

    53.1 °F

  • Highest 15 May, 2026

    86 °F

Climate (2021–Present)

Lake Elmo Airport (10.6 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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