Thompson Lake Weather Forecast

    • 35
    • 59

    Increasing Clouds

    • 35
    • 57

    Mostly Cloudy

    • 35
    • 56

    Partly Sunny

    • 38
    • 59

    Partly Sunny

    • 40
    • 63

    Mostly Sunny

    • 43
    • 66

    Mostly Sunny

Today 22 May Southern Cook/North Shore

Areas of frost this morning. Sunny this Morning, then partly sunny with a chance of rain Showers this afternoon. Highs in the upper 50s. Temperature falling into the mid 50s this afternoon. North Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 22 May Southern Cook/North Shore

Mostly cloudy. A chance of rain Showers in the evening. Areas of frost after midnight. Lows in the mid 30s. North Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

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Thompson Lake Temperature Statistics

May Temperature

Grand Marais/Cook County Airport (4.3 miles)

  • Lowest 8 May, 2025

    26.6 °F

  • Average May

    51.2 °F

  • Highest 12 May, 2025

    80.6 °F

Climate (2020–Present)

Grand Marais/Cook County Airport (4.3 miles)

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  • Average Low 2020–2025

    28.9 °F

  • Average 2020–2025

    38.3 °F

  • Average High 2020–2025

    46.9 °F
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