River Lake Weather Forecast
- 74
- 95
Partly Cloudy
- 73
- 95
Slight Chance Thunderstorms
- 73
- 93
Rain Showers Likely
- 73
- 93
Slight Chance Thunderstorms
- 73
- 93
Chance Rain Showers
- 73
- 94
Mostly Sunny
- 74
- 94
Slight Chance Thunderstorms
Today 9 Sep Madison
Sunny. Near steady temperature in the mid 90s. Southeast Winds around 5 Mph. Heat index Values up to 107.
Tonight 9 Sep Madison
Partly cloudy. Lows in the mid 70s. Southeast Winds around 5 Mph this Evening, becoming light and variable.
River Lake Temperature Statistics
September Temperature
Vicksburg Municipal (8.7 miles)
Lowest 2 September, 2026
73.4 °FAverage September
83.4 °FHighest 6 September, 2026
98.6 °F
Climate (2021–2026)
Vicksburg Municipal (8.7 miles)
Average Low 2021–2026
56.7 °FAverage 2021–2026
66.7 °FAverage High 2021–2026
77.8 °F