Muma Lake Weather Forecast

    • 60
    • 76

    Thunderstorms Likely

    • 54
    • 78

    Chance Rain Showers

    • 56
    • 77

    Partly Sunny

    • 60
    • 79

    Chance Thunderstorms

    • 58
    • 82

    Chance Thunderstorms

    • 56
    • 79

    Chance Rain Showers

Today 23 Jul Southern Cook/North Shore

Showers likely with a chance of Thunderstorms in the Morning, then Showers and Thunderstorms likely in the afternoon. Some Thunderstorms may produce heavy rainfall in the morning. Some Thunderstorms may produce heavy rainfall in the afternoon. Humid with Highs in the upper 70s. Southwest Winds around 5 Mph. Chance of rain 70 percent.

Tonight 23 Jul Southern Cook/North Shore

Showers likely with a chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Near steady temperature in the mid 60s. Southwest Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Muma Lake Temperature Statistics

July Temperature

Grand Marais/Cook County Airport (6.2 miles)

  • Lowest 17 July, 2025

    42.8 °F
  • Average July

    61.6 °F
  • Highest 1 July, 2025

    78.8 °F

Climate (2020–Present)

Grand Marais/Cook County Airport (6.2 miles)

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  • Average Low 2020–2025

    28.7 °F
  • Average 2020–2025

    38.1 °F
  • Average High 2020–2025

    46.7 °F
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