Charlestown Weather Forecast

    • 55
    • 80

    Increasing Clouds

    • 59
    • 76

    Chance Rain Showers

    • 58
    • 77

    Rain Showers

    • 53
    • 79

    Mostly Sunny

    • 52
    • 77

    Mostly Sunny

    • 56
    • 81

    Partly Sunny

    • 61
    • 81

    Chance Rain Showers

Today 21 Aug Sullivan

Mostly sunny. Highs in the upper 70s. Light and variable Winds.

Tonight 21 Aug Sullivan

Mostly clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Charlestown Temperature Statistics

August Temperature

Springfield, Hartness State Springfield Airport (8.7 miles)

  • Lowest 16 August, 2026

    47.6 °F

  • Average August

    72.8 °F

  • Highest 6 August, 2026

    91.7 °F

Climate (2021–2026)

Springfield, Hartness State Springfield Airport (8.7 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    59.2 °F
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