Portland Municipal Airport Weather Forecast

    • 66
    • 86

    Chance Thunderstorms

    • 62
    • 77

    Mostly Cloudy

    • 59
    • 80

    Mostly Sunny

    • 61
    • 81

    Mostly Sunny

    • 57
    • 82

    Mostly Sunny

    • 52
    • 76

    Mostly Sunny

Today 19 Aug Jay

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the mid 80s. Southwest Winds around 10 Mph. Gusts up to 20 Mph this afternoon. Chance of rain 50 percent.

Tonight 19 Aug Jay

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Humid with Lows in the mid 60s. Northwest Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portland Municipal Airport Temperature Statistics

August Temperature

Muncie, Delaware County-Johnson Field (25.5 miles)

  • Lowest 3 August, 2025

    49.6 °F

  • Average August

    74.9 °F

  • Highest 9 August, 2025

    90.6 °F

Climate (2020–Present)

Muncie, Delaware County-Johnson Field (25.5 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    64.8 °F
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