Meriwether Lewis National Monument Weather Forecast

    • 24
    • 40

    Sunny

    • 36
    • 51

    Partly Sunny

    • 44
    • 53

    Rain Showers Likely

    • 26
    • 60

    Rain Showers

    • 31
    • 45

    Mostly Sunny

    • 49
    • 59

    Chance Rain Showers

Today 15 Dec Lewis

Sunny. Highs around 40. Southeast Winds around 5 Mph, becoming southwest around 5 Mph this afternoon.

Tonight 15 Dec Lewis

Clear. Lows in the mid 20s. Southwest Winds around 5 Mph.

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Meriwether Lewis National Monument Temperature Statistics

December Temperature

Columbia / Maury County (15.5 miles)

  • Lowest 1 December, 2025

    26.6 °F

  • Average December

    36.7 °F

  • Highest 12 December, 2025

    60.8 °F

Climate (2020–Present)

Columbia / Maury County (15.5 miles)

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  • Average Low 2020–2025

    49.2 °F

  • Average 2020–2025

    59.8 °F

  • Average High 2020–2025

    71 °F
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