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ZIP 02558 · Onset, Massachusetts

Current conditions and the National Weather Service 7-day forecast for ZIP code 02558, Onset, Massachusetts — temperature, rain chance, wind, radar and alerts.

Saturday Aug 29 night: a low around 62°F. Sunday Aug 30: a high near 80°F and a low around 65°F. The wettest day looks like Tuesday Sep 1, near 0.44 in. Highs over the period run 73°F to 80°F.

National Weather Service forecast for ZIP 02558, Onset, Massachusetts
DayHighLowPrecip
Saturday Aug 2962°
Sunday Aug 3080°65°
Monday Aug 3174°63°
Tuesday Sep 175°65°0.44 in
Wednesday Sep 275°66°
Thursday Sep 378°64°
Friday Sep 474°62°
Saturday Sep 573°

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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