Charlestown Weather Forecast

    • 37
    • 63

    Decreasing Clouds

    • 38
    • 67

    Mostly Sunny

    • 40
    • 64

    Partly Sunny

    • 45
    • 58

    Rain Showers Likely

    • 41
    • 54

    Rain Showers Likely

    • 38
    • 53

    Chance Rain Showers

Today 26 Apr Sullivan

Partly sunny. Highs around 60. Light and variable Winds.

Tonight 26 Apr Sullivan

Partly cloudy. Lows in the upper 30s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Charlestown Temperature Statistics

April Temperature

Springfield, Hartness State Springfield Airport (8.7 miles)

  • Lowest 8 April, 2026

    20.6 °F

  • Average April

    48.8 °F

  • Highest 16 April, 2026

    83.6 °F

Climate (2021–Present)

Springfield, Hartness State Springfield Airport (8.7 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    58.9 °F
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