Riverside SPB Weather Forecast

    • 45
    • 59

    Rain

    • 44
    • 65

    Chance Rain Showers

    • 46
    • 73

    Partly Sunny

    • 56
    • 77

    Partly Sunny

    • 42
    • 76

    Partly Sunny

    • 36
    • 66

    Partly Sunny

Today 28 Sep Southern Piscataquis

Rain. Patchy fog. Highs in the upper 50s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

Tonight 28 Sep Southern Piscataquis

Rain. Patchy fog. Lows in the mid 40s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 80 percent.

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Riverside SPB Temperature Statistics

September Temperature

Greenville (24.9 miles)

  • Lowest 22 September, 2026

    41 °F

  • Average September

    56.3 °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

    43.5 °F

  • Average High 2021–2026

    51.3 °F
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