South Altamaha River - Champney Island Weather Forecast

    • 74
    • 92

    Thunderstorms Likely

    • 74
    • 93

    Slight Chance Thunderstorms

    • 75
    • 95

    Mostly Sunny

    • 74
    • 89

    Chance Thunderstorms

    • 73
    • 86

    Mostly Sunny

    • 72
    • 87

    Chance Thunderstorms

Today 12 Sep Coastal Glynn

Showers likely with a chance of Thunderstorms. Highs in the lower 90s. Southeast Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 12 Sep Coastal Glynn

Mostly cloudy with Showers likely with a chance of Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Altamaha River - Champney Island Temperature Statistics

September Temperature

Brunswick / Glynco (5.6 miles)

  • Lowest 1 September, 2026

    72.3 °F

  • Average September

    81.3 °F

  • Highest 6 September, 2026

    97.9 °F

Climate (2021–2026)

Brunswick / Glynco (5.6 miles)

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  • Average Low 2021–2026

    57.8 °F

  • Average 2021–2026

    67.8 °F

  • Average High 2021–2026

    78.8 °F
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