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Williamstown, Massachusetts

Current conditions and the National Weather Service 7-day forecast for Williamstown, Massachusetts — temperature, rain chance, wind, radar and active alerts.

Saturday Aug 29 night: a low around 54°F. Sunday Aug 30: a high near 80°F and a low around 58°F. The wettest day looks like Tuesday Sep 1, near 0.62 in. Highs over the period run 77°F to 81°F.

National Weather Service forecast for Williamstown, Massachusetts
DayHighLowPrecip
Saturday Aug 2954°
Sunday Aug 3080°58°0.02 in
Monday Aug 3181°60°
Tuesday Sep 178°62°0.62 in
Wednesday Sep 278°62°
Thursday Sep 378°58°
Friday Sep 477°55°
Saturday Sep 577°

NOAA NWS NDFD 2.5 km, run 2026-08-30 03:00 UTC · days are local time in America/New York. The live page updates continuously.

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