Monticello Weather Forecast

    • 43
    • 65

    Rain Showers

    • 53
    • 74

    Partly Sunny

    • 40
    • 71

    Mostly Sunny

    • 46
    • 68

    Partly Sunny

    • 52
    • 76

    Chance Rain Showers

    • 46
    • 72

    Chance Rain Showers

Today 15 May Southeast Aroostook

Partly sunny with isolated Showers. Highs in the lower 60s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 15 May Southeast Aroostook

Mostly cloudy with isolated Showers in the Evening, then partly cloudy after midnight. Lows in the mid 40s. North Winds around 5 Mph, becoming west after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Monticello Temperature Statistics

May Temperature

Houlton, Houlton International Airport (12.4 miles)

  • Lowest 12 May, 2026

    27 °F

  • Average May

    46.5 °F

  • Highest 5 May, 2026

    80.7 °F

Climate (2021–Present)

Houlton, Houlton International Airport (12.4 miles)

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  • Average Low 2021–2026

    33.1 °F

  • Average 2021–2026

    43.6 °F

  • Average High 2021–2026

    53.5 °F
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