Thelma Lake Weather Forecast

    • 15
    • 28

    Mostly Cloudy

    • 22
    • 39

    Mostly Cloudy

    • 33
    • 46

    Slight Chance Rain

    • 39
    • 54

    Rain

    • 11
    • 50

    Rain/Snow

    • 7
    • 24

    Mostly Cloudy

    • 15
    • 34

    Mostly Cloudy

Today 11 Mar Northern Cook/Northern Lake

Partly sunny and much cooler. Near steady temperature in the mid 20s. West Winds around 5 Mph.

Tonight 11 Mar Northern Cook/Northern Lake

Mostly cloudy. A chance of snow. Little or no snow accumulation. Near steady temperature around 19. South Winds around 5 Mph. Chance of snow 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thelma Lake Temperature Statistics

March Temperature

Grand Marais/Cook County Airport (26.1 miles)

  • Lowest 1 March, 2025

    -7.6 °F

  • Average March

    20.7 °F

  • Highest 9 March, 2025

    48.2 °F

Climate (2020–Present)

Grand Marais/Cook County Airport (26.1 miles)

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  • Average Low 2020–2025

    28.8 °F

  • Average 2020–2025

    38.2 °F

  • Average High 2020–2025

    46.8 °F
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