Cottage Grove Weather Forecast

    • 57
    • 81

    Mostly Cloudy

    • 59
    • 80

    Mostly Cloudy

    • 59
    • 83

    Slight Chance Thunderstorms

    • 59
    • 84

    Partly Sunny

    • 62
    • 84

    Chance Thunderstorms

    • 62
    • 83

    Chance Thunderstorms

Today 30 May Washington

Mostly cloudy. Highs in the lower 80s. Southeast Winds 5 to 15 Mph.

Tonight 30 May Washington

Mostly cloudy. Lows in the mid 50s. Southeast Winds 5 to 15 Mph.

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Cottage Grove Temperature Statistics

May Temperature

South St. Paul Municipal-Richard E. Flemi (4.3 miles)

  • Lowest 6 May, 2026

    32 °F

  • Average May

    58.9 °F

  • Highest 27 May, 2026

    90.1 °F

Climate (2021–Present)

South St. Paul Municipal-Richard E. Flemi (4.3 miles)

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  • Average Low 2021–2026

    39.9 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    57.2 °F
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