If you anxiously await summer, this week ends with a nice preview. Temperatures will rise into the mid-upper 90s across many locations, and the humidity might make them feel like they were in the triple digits.
The same high-pressure system located in the upper levels of the atmosphere that affected parts of Texas earlier this week will continue to push east. As this high-pressure system comes closer to Florida, the temperatures will rise. Whenever we have high-pressure systems in the middle to upper levels of the atmosphere, they bring sinking air. When the air sinks, it warms, acting like a lid to keep the warmth closer to the surface.
Get ready for some severe heat, especially across Central and Northern Florida. A high-pressure system brings lots of stable and warm air. Actual temperatures near the triple digits and feeling above 100°F. Hydrate! pic.twitter.com/C2qkEUNBpL
— Florida Public Radio Emergency Network (FPREN) (@FloridaStorms) May 15, 2025
There’s also a high-pressure system on the surface, located east of Florida over the western Atlantic. The positioning of the surface high will keep the winds coming mainly from the east along the peninsula. As the winds come from the east, expect the humidity levels to continue to be high; therefore, expect relative humidity values to stay high throughout the day and night, keeping the heat in.
5/14 | High pressure is expected to build over the SE US and FL on FRI into the weekend. Dry weather with above normal temperatures (~2-6°F) are forecast on THU with above normal to record temperatures (~5-10°F) forecast FRI and into early next week over ECFL. (1/3) #FLwx pic.twitter.com/H0rlMMqKZs
— NWS Melbourne (@NWSMelbourne) May 14, 2025
The warmest days across Florida will be Friday and Saturday. Temperatures across southern locations will range between the low and mid-90s. Some locations along I-4 in the interior could reach the upper 90s. Jacksonville is forecast to also stay in the upper 90s. The weekend will stay warm, with temperatures still in the mid-upper 90s across several locations.
The extended forecast does not show relief in sight. The high-pressure system will stay in place, keeping all the fronts well to the north. This will also maintain a dry trend for the Peninsula, at least through the beginning of June.
