Boulder Lake Reservoir Weather Forecast

    • 35
    • 50

    Rain Showers Likely

    • 34
    • 59

    Partly Sunny

    • 37
    • 56

    Chance Rain Showers

    • 34
    • 54

    Mostly Cloudy

    • 38
    • 55

    Mostly Cloudy

    • 44
    • 58

    Chance Rain Showers

Today 22 Apr Central St. Louis

Cloudy with a 50 percent chance of Showers. Near steady temperature in the upper 40s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 22 Apr Central St. Louis

Mostly cloudy. A slight chance of rain Showers in the evening. Patchy fog after midnight. Lows in the mid 30s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Boulder Lake Reservoir Temperature Statistics

April Temperature

Duluth International Airport (14.9 miles)

  • Lowest 8 April, 2025

    14.8 °F

  • Average April

    36.8 °F

  • Highest 12 April, 2025

    62.7 °F

Climate (2020–Present)

Duluth International Airport (14.9 miles)

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  • Average Low 2020–2025

    33.6 °F

  • Average 2020–2025

    42.4 °F

  • Average High 2020–2025

    51.1 °F
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