Scattered Showers Likely in Eastern U.S. on Sep 23
According to recent National Weather Service (NWS) and ensemble model guidance, scattered showers are expected across parts of the eastern and southeastern United States on September 23, 2026. Measurable precipitation, defined as 0.01 inches or more of liquid equivalent, is most likely in Florida and coastal mid-Atlantic areas due to a lingering upper-level low and onshore flow. Meanwhile, higher pressure and drier air will limit rainfall in the Northeast, Midwest, and western regions, consistent with late-September climatology. Rain probabilities vary significantly by location, with Miami, FL showing a 91% chance, Washington, DC at 87%, and Atlanta, GA at 55%. In contrast, cities like Seattle, WA and Boston, MA have rain probabilities below 10%. This forecast highlights localized convective activity and atmospheric moisture patterns typical for this time of year.