Riverside SPB Weather Forecast

    • 50
    • 74

    Mostly Cloudy

    • 52
    • 71

    Mostly Cloudy

    • 40
    • 69

    Mostly Sunny

    • 41
    • 66

    Partly Sunny

    • 42
    • 66

    Chance Rain Showers

    • 42
    • 65

    Chance Rain Showers

Today 16 Sep Southern Piscataquis

Patchy fog in the morning. Partly sunny. Highs in the mid 70s. Southwest Winds around 5 Mph.

Tonight 16 Sep Southern Piscataquis

Partly cloudy. Patchy fog after midnight. Lows around 50. West Winds around 5 Mph, becoming north after midnight.

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Riverside SPB Temperature Statistics

September Temperature

Greenville (24.9 miles)

  • Lowest 9 September, 2026

    43 °F

  • Average September

    57.9 °F

  • Highest 4 September, 2026

    72 °F

Climate (2021–2026)

Greenville (24.9 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    43.6 °F

  • Average High 2021–2026

    51.3 °F
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