Grand Bay Weather Forecast
- 74
- 90
Rain Showers Likely
- 75
- 89
Rain Showers
- 74
- 90
Rain Showers
- 75
- 91
Chance Thunderstorms
- 74
- 91
Chance Thunderstorms
- 74
- 92
Chance Thunderstorms
Today 10 Sep Mobile Coastal
Partly sunny with a chance of Thunderstorms. Showers Likely, mainly in the morning. Humid with Highs in the upper 80s. East Winds 5 to 10 Mph, becoming southeast in the afternoon. Chance of rain 70 percent.
Tonight 10 Sep Mobile Coastal
Partly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Humid with Lows in the upper 70s. South Winds around 5 Mph. Chance of rain 70 percent.
Grand Bay Temperature Statistics
September Temperature
Moss Point - Trent Lott International Airport (11.2 miles)
Lowest 3 September, 2026
72.6 °FAverage September
81.9 °FHighest 3 September, 2026
93.7 °F
Climate (2021–2026)
Moss Point - Trent Lott International Airport (11.2 miles)
Average Low 2021–2026
58.8 °FAverage 2021–2026
69.6 °FAverage High 2021–2026
80.8 °F