Lewis Weather Forecast

    • 59
    • 77

    Patchy Fog

    • 63
    • 79

    Chance Rain Showers

    • 54
    • 78

    Chance Thunderstorms

    • 50
    • 68

    Partly Sunny

    • 45
    • 63

    Partly Sunny

    • 44
    • 66

    Mostly Sunny

Today 20 Aug Polk

Mostly sunny. Highs in the upper 70s. Northeast Winds around 5 Mph.

Tonight 20 Aug Polk

Mostly clear. Patchy fog through the night. Lows around 60. East Winds up to 5 Mph.

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Lewis Temperature Statistics

August Temperature

Siren, Burnett County Airport (7.5 miles)

  • Lowest 14 August, 2025

    59.2 °F

  • Average August

    69.6 °F

  • Highest 15 August, 2025

    81.9 °F

Climate (2020–Present)

Siren, Burnett County Airport (7.5 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    43.8 °F

  • Average High 2020–2025

    53.6 °F
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