Marathon's outlook: warmest day near 87° (Sunday), coldest night about 84° (Tuesday). About 2.3 in of precipitation is expected in total; the most likely wet day is Sunday (77% chance). Hold onto the patio furniture Sunday: gusts could hit 44 mph. The NWS alert board for this area is currently clear. Right now Marathon is running about 8° warmer than Port Saint Lucie. Longer view: wet-summer, dry-winter Florida rhythm, with hurricane season June–November.
Marathon, FL · Elev 3 ft · 24.71°N, 81.09°W · Florida · Forecast computed for these exact coordinates