Grand Bay Weather Forecast
- 77
- 96
Slight Chance Thunderstorms
- 74
- 93
Thunderstorms Likely
- 75
- 92
Rain Showers
- 75
- 89
Thunderstorms
- 73
- 89
Thunderstorms Likely
- 74
- 89
Chance Thunderstorms
Today 29 Jul Mobile Coastal
Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the mid 90s. Northwest Winds 5 to 10 Mph, becoming southwest with Gusts up to 20 Mph this afternoon. Chance of rain 20 percent. Heat index Values up to 112.
Tonight 29 Jul Mobile Coastal
Mostly cloudy in the Evening, then clearing. A slight chance of Showers and Thunderstorms. Humid with Lows in the upper 70s. West Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 108 early in the evening.
Grand Bay Temperature Statistics
July Temperature
Moss Point - Trent Lott International Airport (11.2 miles)
Lowest 16 July, 2026
69.7 °FAverage July
83.3 °FHighest 18 July, 2026
97.6 °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