Mattlia Lake Weather Forecast

    • 51
    • 77

    Partly Sunny

    • 45
    • 74

    Mostly Sunny

    • 44
    • 75

    Mostly Sunny

    • 57
    • 78

    Chance Rain Showers

    • 56
    • 81

    Slight Chance Thunderstorms

    • 52
    • 78

    Slight Chance Thunderstorms

    • 52
    • 78

    Partly Sunny

Today 21 Aug Carlton/South St. Louis

Mostly sunny with a chance of Sprinkles. Near steady temperature in the mid 70s. Northwest Winds 5 to 10 Mph.

Tonight 21 Aug Carlton/South St. Louis

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms this Evening, then mostly clear after midnight. Lows in the lower 50s. Northwest Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mattlia Lake Temperature Statistics

August Temperature

Mc Gregor - Isedor Iverson Airport (13 miles)

  • Lowest 19 August, 2026

    41 °F

  • Average August

    66.8 °F

  • Highest 3 August, 2026

    84.2 °F

Climate (2021–2026)

Mc Gregor - Isedor Iverson Airport (13 miles)

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  • Average Low 2021–2026

    32.9 °F

  • Average 2021–2026

    42.9 °F

  • Average High 2021–2026

    52.5 °F
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