Lewistown Weather Forecast

    • 64
    • 89

    Chance Thunderstorms

    • 56
    • 85

    Mostly Sunny

    • 58
    • 82

    Mostly Sunny

    • 66
    • 87

    Partly Sunny

    • 70
    • 94

    Mostly Sunny

    • 71
    • 95

    Chance Thunderstorms

Today 20 Jul Mifflin

Partly sunny. A slight chance of Showers and Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Some Thunderstorms may produce gusty Winds and small hail in the afternoon. Very warm. Humid with Highs in the mid 80s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 20 Jul Mifflin

Partly cloudy in the Evening, then clearing. Humid with Lows in the lower 60s. Northwest Winds 5 to 10 Mph.

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Lewistown Temperature Statistics

July Temperature

State College - University Park Airport (22.4 miles)

  • Lowest 5 July, 2025

    56.3 °F

  • Average July

    72.5 °F

  • Highest 7 July, 2025

    89.6 °F

Climate (2020–Present)

State College - University Park Airport (22.4 miles)

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  • Average Low 2020–2025

    43.1 °F

  • Average 2020–2025

    50.4 °F

  • Average High 2020–2025

    60.5 °F
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