Thornton Lake Weather Forecast

    • 66
    • 89

    Smoke

    • 64
    • 92

    Slight Chance Thunderstorms

    • 60
    • 86

    Mostly Sunny

    • 65
    • 87

    Partly Sunny

    • 58
    • 86

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

Today 16 Jul South Aitkin

Mostly sunny. Smoke in the Morning, then Areas of smoke in the afternoon. Hot with Highs in the upper 80s. Southeast Winds around 5 Mph.

Tonight 16 Jul South Aitkin

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Smoke with Lows in the lower 60s. East Winds around 5 Mph. Gusts up to 20 Mph in the evening. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

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Thornton Lake Temperature Statistics

July Temperature

Aitkin Municipal Airport - Steve Kurtz Field (8.7 miles)

  • Lowest 5 July, 2026

    50 °F

  • Average July

    72.1 °F

  • Highest 13 July, 2026

    91.4 °F

Climate (2021–2026)

Aitkin Municipal Airport - Steve Kurtz Field (8.7 miles)

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  • Average Low 2021–2026

    31 °F

  • Average 2021–2026

    42.3 °F

  • Average High 2021–2026

    52.5 °F
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