Charlestown Weather Forecast

    • 46
    • 62

    Chance Rain

    • 55
    • 77

    Partly Sunny

    • 48
    • 81

    Mostly Sunny

    • 58
    • 83

    Mostly Sunny

    • 64
    • 88

    Slight Chance Rain Showers

    • 53
    • 84

    Chance Rain Showers

Today 15 May Sullivan

Mostly cloudy with a 50 percent chance of rain. Highs in the upper 50s. Light and variable Winds.

Tonight 15 May Sullivan

Partly cloudy. Lows in the mid 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Charlestown Temperature Statistics

May Temperature

Springfield, Hartness State Springfield Airport (8.7 miles)

  • Lowest 9 May, 2026

    30.7 °F

  • Average May

    50.4 °F

  • Highest 5 May, 2026

    83.6 °F

Climate (2021–Present)

Springfield, Hartness State Springfield Airport (8.7 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    59 °F
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