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ZIP 04645 · Southwest Harbor, Maine

Current conditions and the National Weather Service 7-day forecast for ZIP code 04645, Southwest Harbor, Maine — temperature, rain chance, wind, radar and alerts.

Saturday Aug 29 night: a low around 58°F. Sunday Aug 30: a high near 73°F and a low around 56°F. The wettest day looks like Sunday Aug 30, near 0.09 in. Highs over the period run 66°F to 74°F.

National Weather Service forecast for ZIP 04645, Southwest Harbor, Maine
DayHighLowPrecip
Saturday Aug 2958°
Sunday Aug 3073°56°0.09 in
Monday Aug 3174°57°
Tuesday Sep 172°58°0.01 in
Wednesday Sep 266°59°
Thursday Sep 369°58°
Friday Sep 468°57°
Saturday Sep 567°

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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