Sumter Weather Forecast
- 73
- 93
Thunderstorms Likely
- 74
- 90
Chance Thunderstorms
- 74
- 89
Thunderstorms Likely
- 77
- 94
Chance Thunderstorms
- 77
- 96
Slight Chance Thunderstorms
- 77
- 98
Chance Thunderstorms
Today 22 Jul Sumter
Mostly sunny. Showers and Thunderstorms likely this afternoon. Highs in the lower 90s. Northeast Winds around 5 Mph. Chance of rain 70 percent.
Tonight 22 Jul Sumter
Mostly cloudy with Showers and Thunderstorms likely in the Evening, then partly cloudy after midnight. Humid with Lows in the lower 70s. Northeast Winds around 5 Mph. Chance of rain 70 percent.
Sumter Temperature Statistics
July Temperature
Sumter Airport (5 miles)
Lowest 5 July, 2025
69.8 °FAverage July
80.7 °FHighest 17 July, 2025
96.8 °F
Climate (2020–Present)
Sumter Airport (5 miles)
Average Low 2020–2025
53.2 °FAverage 2020–2025
64.2 °FAverage High 2020–2025
76 °F