Lewis Weather Forecast

    • 71
    • 94

    Partly Sunny

    • 71
    • 95

    Slight Chance Thunderstorms

    • 70
    • 90

    Chance Thunderstorms

    • 75
    • 90

    Partly Sunny

    • 72
    • 94

    Chance Thunderstorms

    • 68
    • 90

    Chance Rain Showers

Today 4 Sep Cass

Mostly sunny. Near steady temperature in the lower 90s. Southwest Winds around 10 Mph. Heat index Values up to 103.

Tonight 4 Sep Cass

Mostly clear. Humid with Lows around 70. South Winds around 5 Mph. Heat index Values up to 103 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewis Temperature Statistics

September Temperature

Atlantic (6.2 miles)

  • Lowest 2 September, 2026

    68 °F

  • Average September

    81.1 °F

  • Highest 2 September, 2026

    95 °F

Climate (2021–2026)

Atlantic (6.2 miles)

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  • Average Low 2021–2026

    39.8 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    62.2 °F
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