Portland Weather Forecast

    • 54
    • 73

    Rain Showers

    • 41
    • 60

    Partly Sunny

    • 45
    • 64

    Partly Sunny

    • 58
    • 70

    Chance Rain Showers

    • 63
    • 82

    Chance Rain Showers

    • 68
    • 85

    Chance Rain Showers

Today 12 May Jay

Sunny late this Morning, then becoming partly cloudy. Highs in the lower 70s. Southeast Winds around 5 Mph, becoming south 10 to 15 Mph this afternoon.

Tonight 12 May Jay

Mostly cloudy with a slight chance of Thunderstorms. A chance of Showers in the Evening, then Showers after midnight. Lows in the mid 50s. Southwest Winds around 15 Mph with Gusts up to 30 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

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Portland Temperature Statistics

May Temperature

Muncie, Delaware County-Johnson Field (25.5 miles)

  • Lowest 2 May, 2026

    34.6 °F

  • Average May

    55.3 °F

  • Highest 4 May, 2026

    76.6 °F

Climate (2021–Present)

Muncie, Delaware County-Johnson Field (25.5 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    65 °F
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