Lewistown Weather Forecast

    • 36
    • 50

    Increasing Clouds

    • 52
    • 64

    Slight Chance Thunderstorms

    • 36
    • 76

    Rain Showers

    • 24
    • 43

    Partly Sunny

    • 31
    • 49

    Mostly Sunny

    • 42
    • 58

    Mostly Cloudy

Today 24 Mar Logan

Sunny until late Afternoon, then becoming partly cloudy. Highs in the upper 40s. South Winds around 5 Mph, becoming southwest late.

Tonight 24 Mar Logan

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 30s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewistown Temperature Statistics

March Temperature

Bellefontaine Regional Airport (4.3 miles)

  • Lowest 18 March, 2026

    15.8 °F

  • Average March

    50.3 °F

  • Highest 22 March, 2026

    78.8 °F

Climate (2021–Present)

Bellefontaine Regional Airport (4.3 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    55.8 °F

  • Average High 2021–2026

    64.6 °F
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