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Riley Field, SC Weather Forecast
Riley Field, SC Weather Forecast Date: 608 AM EDT Sun Aug 16 2026
The area/counties/county of: Sumter, including the city of Sumter.or toggle through each period.
Today... Mostly sunny. A slight chance of showers and thunderstorms this afternoon. Highs in the mid 90s. Light and variable winds, becoming south around 5 mph this afternoon. Chance of rain 20%. Heat index values up to 109.
Tonight... Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Humid with lows in the upper 70s. South winds around 5 mph. Chance of rain 20%.
Monday... Sunny, hot with highs around 100. West winds around 5 mph. Heat index values up to 111.
Monday Night... Mostly clear. Lows in the upper 70s. West winds around 5 mph. Heat index values up to 111 early in the evening.
Tuesday... Sunny. Highs in the upper 90s. Northwest winds around 5 mph. Heat index values up to 110.
Tuesday Night... A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 70s. Chance of rain 30%.
Wednesday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 40%.
Wednesday Night... Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 70s. Chance of rain 40%.
Thursday... Sunny. Highs in the upper 90s.
Thursday Night... Partly cloudy with a chance of showers. Lows in the mid 70s. Chance of rain 40%.
Friday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 50%.
Friday Night... Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50%.
POP = Probability of Precipitation
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