Over the next 10 days Riverhead tops out around 90° (Wednesday) and dips to 64° on the coolest night (Friday). Roughly 1.7 in of rain falls over the period, with Friday the most likely wet day (93%). Expect a blustery spell — gusts near 30 mph on Friday. The NWS alert board for this area is currently clear. Right now Riverhead is about 19° cooler than nearby Philadelphia. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Riverhead, NY · Elev 13 ft · 40.92°N, 72.66°W · New York · Forecast computed for these exact coordinates