Topsham Weather Forecast

    • 40
    • 58

    Slight Chance Rain

    • 30
    • 47

    Rain

    • 26
    • 47

    Partly Sunny

    • 32
    • 46

    Slight Chance Rain Showers

    • 34
    • 48

    Slight Chance Rain Showers

    • 36
    • 55

    Partly Sunny

    • 36
    • 55

    Mostly Cloudy

Today 18 Apr Sagadahoc

Mostly cloudy this Morning, then becoming partly sunny. Patchy fog this morning. Highs in the mid 50s. East Winds around 10 Mph.

Tonight 18 Apr Sagadahoc

Cloudy. Areas of drizzle this Evening, then a slight chance of rain after midnight. Patchy fog this Evening, then Areas of fog after midnight. Lows around 40. Southeast Winds around 10 Mph with Gusts up to 20 Mph this Evening, becoming light and variable. Chance of rain 20 percent.

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  • Temperature Real-Time

Topsham Temperature Statistics

April Temperature

Wiscasset Airport (13 miles)

  • Lowest 7 April, 2026

    24.1 °F

  • Average April

    43.4 °F

  • Highest 15 April, 2026

    63 °F

Climate (2021–Present)

Wiscasset Airport (13 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    57.9 °F
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