Barnum Weather Forecast

    • 63
    • 82

    Chance Thunderstorms

    • 61
    • 85

    Slight Chance Thunderstorms

    • 58
    • 80

    Chance Thunderstorms

    • 52
    • 68

    Chance Thunderstorms

    • 49
    • 62

    Slight Chance Thunderstorms

    • 50
    • 62

    Mostly Cloudy

Today 15 Sep Carlton/South St. Louis

Patchy dense fog this morning. Mostly cloudy with a slight chance of Showers this Morning, then partly sunny with a chance of Showers and Thunderstorms this afternoon. Warmer with Highs around 80. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

Tonight 15 Sep Carlton/South St. Louis

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Patchy fog after midnight. Humid with Lows in the lower 60s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

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Barnum Temperature Statistics

September Temperature

Moose Lake Carlton County Airport (8.1 miles)

  • Lowest 8 September, 2025

    35.6 °F

  • Average September

    56.3 °F

  • Highest 1 September, 2025

    80.6 °F

Climate (2020–Present)

Moose Lake Carlton County Airport (8.1 miles)

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  • Average Low 2020–2025

    32.7 °F

  • Average 2020–2025

    43.2 °F

  • Average High 2020–2025

    53.5 °F
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