Lewistown Weather Forecast

    • 65
    • 86

    Chance Thunderstorms

    • 65
    • 85

    Sunny

    • 67
    • 88

    Mostly Sunny

    • 70
    • 90

    Mostly Sunny

    • 73
    • 93

    Slight Chance Thunderstorms

    • 72
    • 92

    Chance Thunderstorms

Today 30 Jun Fulton

Mostly sunny. Patchy fog this morning. A slight chance of Showers and Thunderstorms this Morning, then a chance of Showers and Thunderstorms this afternoon. Highs in the mid 80s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 30 Jun Fulton

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the mid 60s. Northwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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Lewistown Temperature Statistics

June Temperature

Macomb Municipal Airport (27.3 miles)

  • Lowest 10 June, 2025

    50.2 °F

  • Average June

    72.5 °F

  • Highest 25 June, 2025

    90.9 °F

Climate (2020–Present)

Macomb Municipal Airport (27.3 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    63.5 °F
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