Roslyn Weather Forecast

    • 62
    • 90

    Mostly Sunny

    • 59
    • 91

    Mostly Sunny

    • 60
    • 91

    Mostly Sunny

    • 63
    • 93

    Mostly Sunny

    • 62
    • 89

    Chance Rain Showers

    • 62
    • 85

    Chance Rain Showers

    • 62
    • 83

    Chance Rain Showers

Today 15 Sep Cumberland

Sunny. Near steady temperature in the upper 80s. East Winds around 5 Mph.

Tonight 15 Sep Cumberland

Mostly clear. Lows in the lower 60s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Roslyn Temperature Statistics

September Temperature

Effingham, Effingham County Memorial Airport (13.7 miles)

  • Lowest 8 September, 2025

    43.5 °F

  • Average September

    67.2 °F

  • Highest 13 September, 2025

    94.6 °F

Climate (2020–Present)

Effingham, Effingham County Memorial Airport (13.7 miles)

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  • Average Low 2020–2025

    45.6 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    65.6 °F
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