Boulder Lake Reservoir Weather Forecast

    • 55
    • 79

    Areas Smoke

    • 57
    • 77

    Mostly Cloudy

    • 57
    • 74

    Mostly Cloudy

    • 60
    • 77

    Slight Chance Thunderstorms

    • 63
    • 81

    Chance Thunderstorms

    • 64
    • 83

    Chance Thunderstorms

Today 2 Aug Central St. Louis

Mostly sunny. Areas of smoke. Highs in the upper 70s. Southwest Winds 5 to 10 Mph.

Tonight 2 Aug Central St. Louis

Partly cloudy. Areas of smoke. Lows in the lower 50s. Southwest Winds around 5 Mph.

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Boulder Lake Reservoir Temperature Statistics

August Temperature

Duluth International Airport (14.9 miles)

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  • Average August

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Climate (2020–Present)

Duluth International Airport (14.9 miles)

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  • Average Low 2020–2025

    33.5 °F

  • Average 2020–2025

    42.3 °F

  • Average High 2020–2025

    51 °F
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