Charleston Weather Forecast

    • 41
    • 69

    Mostly Cloudy

    • 42
    • 63

    Rain Likely

    • 46
    • 60

    Rain Showers

    • 51
    • 79

    Chance Rain Showers

    • 47
    • 71

    Chance Rain Showers

    • 44
    • 66

    Chance Rain Showers

Today 23 May Southern Penobscot

Mostly sunny. Near steady temperature in the upper 60s. Northeast Winds around 5 Mph.

Tonight 23 May Southern Penobscot

Mostly cloudy. Lows in the lower 40s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Charleston Temperature Statistics

May Temperature

Bangor, Bangor International Airport (22.4 miles)

  • Lowest 2 May, 2026

    30.7 °F

  • Average May

    53.7 °F

  • Highest 19 May, 2026

    89.7 °F

Climate (2021–Present)

Bangor, Bangor International Airport (22.4 miles)

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  • Average Low 2021–2026

    37.3 °F

  • Average 2021–2026

    47.1 °F

  • Average High 2021–2026

    56.7 °F
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