Lewistown Weather Forecast

    • 62
    • 75

    Increasing Clouds

    • 57
    • 75

    Rain Showers

    • 54
    • 69

    Rain Showers Likely

    • 48
    • 62

    Rain Showers Likely

    • 49
    • 60

    Chance Rain Showers

    • 50
    • 63

    Chance Rain Showers

Today 19 Sep Mifflin

Patchy fog in the morning. Partly sunny. Highs in the lower 70s. East Winds around 5 Mph.

Tonight 19 Sep Mifflin

Mostly cloudy. A chance of Showers after midnight. Not as cool with Lows in the lower 60s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewistown Temperature Statistics

September Temperature

State College - University Park Airport (22.4 miles)

  • Lowest 15 September, 2026

    44.6 °F

  • Average September

    67.8 °F

  • Highest 1 September, 2026

    89.6 °F

Climate (2021–2026)

State College - University Park Airport (22.4 miles)

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  • Average Low 2021–2026

    42.9 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    60.5 °F
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