Mount Katahdin Weather Forecast

    • 28
    • 41

    Breezy

    • 31
    • 39

    Breezy

    • 38
    • 46

    Rain Showers Likely

    • 38
    • 43

    Chance Rain Showers

    • 39
    • 53

    Chance Rain Showers

    • 42
    • 57

    Chance Rain Showers

Today 29 May Northern Piscataquis

Mostly cloudy. Near steady temperature in the mid 50s. East Winds 5 to 10 Mph.

Tonight 29 May Northern Piscataquis

Mostly cloudy. Isolated rain Showers in the evening. Lows in the mid 30s. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Katahdin Temperature Statistics

May Temperature

Millinocket, Millinocket Municipal Airport (20.5 miles)

  • Lowest 2 May, 2026

    30.7 °F

  • Average May

    53.2 °F

  • Highest 20 May, 2026

    86.6 °F

Climate (2021–Present)

Millinocket, Millinocket Municipal Airport (20.5 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    54.9 °F
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