Lewistown Weather Forecast

    • 34
    • 53

    Rain Showers Likely

    • 35
    • 60

    Mostly Sunny

    • 44
    • 73

    Mostly Sunny

    • 48
    • 79

    Mostly Sunny

    • 39
    • 73

    Chance Rain Showers

    • 35
    • 56

    Chance Rain Showers

    • 40
    • 62

    Chance Rain Showers

Today 30 Apr Fergus County below 4500ft

Rain Showers likely in the Morning, then chance of rain Showers in the afternoon. Highs 55 to 60. Northwest Winds 5 to 15 Mph. Chance of Showers 70 percent.

Tonight 30 Apr Fergus County below 4500ft

Colder. Mostly cloudy. Slight chance of rain Showers in the Evening, then chance of rain Showers after midnight. Lows 35 to 40. West Winds up to 10 Mph. Chance of Showers 40 percent.

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Lewistown Temperature Statistics

April Temperature

Lewistown, Lewistown Municipal Airport (1.2 miles)

  • Lowest 4 April, 2025

    14.8 °F

  • Average April

    41.1 °F

  • Highest 7 April, 2025

    71.7 °F

Climate (2020–Present)

Lewistown, Lewistown Municipal Airport (1.2 miles)

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  • Average Low 2020–2025

    32.2 °F

  • Average 2020–2025

    44.3 °F

  • Average High 2020–2025

    56.2 °F
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