Grand Gulf Weather Forecast
- 73
- 94
Slight Chance Thunderstorms
- 73
- 91
Rain Showers Likely
- 73
- 92
Chance Thunderstorms
- 73
- 93
Chance Thunderstorms
- 72
- 93
Mostly Sunny
- 73
- 94
Slight Chance Thunderstorms
- 72
- 93
Slight Chance Thunderstorms
Today 10 Sep Claiborne
Mostly sunny. Near steady temperature in the lower 90s. East Winds around 5 Mph. Heat index Values up to 106.
Tonight 10 Sep Claiborne
Mostly cloudy. A slight chance of Showers and Thunderstorms in the evening. Humid with Lows in the lower 70s. Southeast Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.
Grand Gulf Temperature Statistics
September Temperature
Vicksburg Municipal (14.9 miles)
Lowest 2 September, 2026
73.4 °FAverage September
83.2 °FHighest 6 September, 2026
98.6 °F
Climate (2021–2026)
Vicksburg Municipal (14.9 miles)
Average Low 2021–2026
56.7 °FAverage 2021–2026
66.7 °FAverage High 2021–2026
77.8 °F