Mattlia Lake Weather Forecast

    • 56
    • 77

    Mostly Cloudy

    • 61
    • 79

    Rain Showers Likely

    • 63
    • 76

    Rain Showers

    • 59
    • 79

    Slight Chance Thunderstorms

    • 50
    • 74

    Partly Sunny

    • 49
    • 71

    Partly Sunny

Today 5 Sep Carlton/South St. Louis

Mostly cloudy in the Morning, then becoming partly sunny. Widespread fog in the morning. Humid with Highs in the mid 70s. East Winds 5 to 10 Mph.

Tonight 5 Sep Carlton/South St. Louis

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 50s. East Winds 5 to 10 Mph.

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  • Temperature Real-Time

Mattlia Lake Temperature Statistics

September Temperature

Mc Gregor - Isedor Iverson Airport (13 miles)

  • Lowest 1 September, 2026

    51.8 °F

  • Average September

    68 °F

  • Highest 2 September, 2026

    82.4 °F

Climate (2021–2026)

Mc Gregor - Isedor Iverson Airport (13 miles)

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  • Average Low 2021–2026

    32.8 °F

  • Average 2021–2026

    42.9 °F

  • Average High 2021–2026

    52.5 °F
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