Boulder Lake Reservoir Weather Forecast

    • 26
    • 41

    Chance Snow

    • 31
    • 43

    Mostly Cloudy

    • 29
    • 45

    Mostly Cloudy

    • 25
    • 48

    Chance Rain/Snow

    • 16
    • 37

    Partly Sunny

    • 22
    • 38

    Mostly Cloudy

Today 18 Mar Central St. Louis

Mostly cloudy. A slight chance of very light freezing drizzle in the morning. Not as cool with Highs in the lower 40s. Southwest Winds 5 to 10 Mph.

Tonight 18 Mar Central St. Louis

Cloudy with a slight chance of Snow, freezing rain and freezing drizzle. Not as cool. Near steady temperature around 14. South Winds 5 to 10 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Boulder Lake Reservoir Temperature Statistics

March Temperature

Duluth International Airport (14.9 miles)

  • Lowest 1 March, 2026

    -10.4 °F

  • Average March

    28 °F

  • Highest 8 March, 2026

    48.9 °F

Climate (2021–Present)

Duluth International Airport (14.9 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    42.4 °F

  • Average High 2021–2026

    51.2 °F
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