Florida Fall Forecast: Above-Average Heat Expected to Linger Through November
Federal forecasters at the National Oceanic and Atmospheric Administration Climate Prediction Center announced on August 20, 2026, that above-normal temperatures will persist across Florida through November. Driven by a strengthening El Niño, Sunshine State residents face an extended summer marked by high humidity and lingering heat following a record-shattering August.
Federal Forecasters Predict Persistent Autumn Heat Across Florida
Fall may arrive on the calendar in September, but relief from high temperatures remains out of reach for Florida. According to an online forecast released on August 20, 2026, by National Oceanic and Atmospheric Administration Climate Prediction Center lead meteorologist Scott Handel, the temperature outlook for September through November favors above-normal readings across the state. This trend follows a scorching summer that saw multiple Florida cities break historical heat records.
AccuWeather meteorologist Brian Lada noted that residents should view September as part of an extended summer season. High humidity and warm nights will accompany the elevated temperatures. While cold snaps remain a possibility as the season progresses, Lada indicated that any genuinely chilly air may hold off until October.
The persistent warmth stems partly from a recent weather pattern that locked a heat dome over the Southeast United States. On August 18, 2026, at least ten Florida cities set or tied high-temperature records. Tallahassee and Miami both surged into triple digits, with Miami hitting that mark for the first time in 131 years. Fort Lauderdale and Jacksonville reached 98 degrees, while Melbourne and Gainesville topped out at 97 degrees. West Palm Beach, Fort Pierce, and Vero Beach all recorded 96 degrees.
El Niño Emerges as the Dominant Weather Driver
A strengthening El Niño is projected to dictate regional weather patterns throughout the autumn and winter months. According to AccuWeather meteorologist Paul Pastelok, forecasters possess high confidence in this signal. “Because the signal will be very strong, the confidence level is good that El Niño will drive a majority of the weather features across the nation this fall and winter,” Pastelok stated via email to USA TODAY.
While the Northwest contends with prolonged wildfire risks extending into early fall, the southern tier of the United States can expect notable shifts in precipitation. The Climate Prediction Center’s fall precipitation forecast indicates that Florida and the broader Southeast will experience wetter-than-average conditions. Handel wrote that the greatest chances for above-normal precipitation exceed 40 percent across much of the Southwest, the Great Basin, the central and southern Rockies, and parts of the coastal Southeast.
Contrasting Meteorological and Astronomical Fall Timelines
As communities prepare for months of above-average heat and increased rainfall, the seasonal transition follows two distinct timelines. Meteorological fall officially begins on September 1, aligning with the standard calendar months used for climate record-keeping. In contrast, astronomical fall arrives with the autumnal equinox on September 22 at 8:05 p.m. ET.
Despite these formal markers, federal data confirms that the atmospheric environment across Florida will bear little resemblance to traditional autumn weather. The combination of a strong El Niño signal and ongoing global temperature trends ensures that residents and municipal planners must prepare for months of abnormal warmth and wet conditions.