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ZIP 11901 · Riverhead, New York

Current conditions and the National Weather Service 7-day forecast for ZIP code 11901, Riverhead, New York — temperature, rain chance, wind, radar and alerts.

Saturday Aug 29 night: a low around 61°F. Sunday Aug 30: a high near 81°F and a low around 66°F. The wettest day looks like Tuesday Sep 1, near 0.30 in. Highs over the period run 75°F to 81°F.

National Weather Service forecast for ZIP 11901, Riverhead, New York
DayHighLowPrecip
Saturday Aug 2961°
Sunday Aug 3081°66°0.12 in
Monday Aug 3179°64°0.03 in
Tuesday Sep 179°67°0.30 in
Wednesday Sep 279°68°
Thursday Sep 381°66°
Friday Sep 477°63°
Saturday Sep 575°

NOAA NWS NDFD 2.5 km, run 2026-08-30 00:00 UTC · days are local time in America/New York. The live page updates continuously.

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