Greenville is waking to clear skies and temperatures in the upper 50s Wednesday, with sunshine and a high near 79 expected this afternoon. Dry, seasonably warm weather should hold through Friday: Thursday’s high is forecast near 85, followed by a partly sunny Friday with a high around 81. Overnight lows are expected to range from the mid-50s to about 60, and no watches, warnings or advisories are posted for the area.
Rain returns to the forecast Saturday
Showers are possible Saturday, with thunderstorms also possible later in the day. Saturday’s forecast high is near 75. The chance of showers and thunderstorms rises to 90% Saturday night through Sunday; Sunday is expected to be cloudy, with a high near 74 and gusty winds.
The National Weather Service says weekend rain is likely, but its timing, amount and duration remain uncertain. The forecast also identifies areas near and immediately upstream of the Blue Ridge Escarpment as places where heavier rainfall could occur. A U.S. Geological Survey report explains that rising terrain can enhance precipitation by lifting air, but that general process does not determine how much rain Greenville will receive or where heavier rain will fall this weekend.
A past extreme is context, not a forecast
The region has experienced rainfall far beyond what this forecast currently specifies: the National Hurricane Center’s report on Hurricane Helene says more than 18 inches of rain fell in portions of northern Greenville and northern Pickens Counties on September 24–27, 2024. That documented extreme provides historical context, but it does not predict this weekend’s rainfall or establish that flooding will occur.
Greenville County’s hazard-mitigation plan says the county maintains rainfall, stage and flow monitoring systems. The cited plan does not identify specific monitored streams or locations for this forecast. A chance of rain alone is not evidence that flooding will occur, and the weekend’s rainfall details remain unsettled.
Conditions may improve Monday, with a partly sunny high near 80 and a 30% chance of showers and thunderstorms. Tuesday currently looks sunny, with another high near 80.
