Winthrop Weather Forecast

    • 48
    • 86

    Rain Showers

    • 50
    • 73

    Mostly Sunny

    • 54
    • 73

    Mostly Cloudy

    • 53
    • 68

    Chance Rain Showers

    • 53
    • 74

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

Today 17 Aug Kennebec

Partly sunny. Showers with a chance of Thunderstorms this afternoon. Highs in the mid 80s. Light and variable Winds, becoming west 15 to 20 Mph with Gusts up to 35 Mph this afternoon. Chance of rain 80 percent.

Tonight 17 Aug Kennebec

Areas of fog in the evening. Mostly cloudy with Showers likely with a chance of Thunderstorms in the Evening, then mostly clear after midnight. Lows in the upper 40s. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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Winthrop Temperature Statistics

August Temperature

Augusta, Augusta State Airport (8.7 miles)

  • Lowest 3 August, 2025

    56.6 °F

  • Average August

    74.4 °F

  • Highest 11 August, 2025

    98.7 °F

Climate (2020–Present)

Augusta, Augusta State Airport (8.7 miles)

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  • Average Low 2020–2025

    40.6 °F

  • Average 2020–2025

    49 °F

  • Average High 2020–2025

    57.7 °F
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