Overview

• Showers and a few thunderstorms arrive Thursday across Michigan and spread into New England on Friday, with the steadiest Maine rain Friday afternoon into evening.
• Rainfall is generally projected at 0.25 to 0.5 inches, with northern Lower Michigan possibly up to 0.75 inches and locally higher totals where thunderstorms develop.
• Maine’s dry August gets some help from Friday’s rain, though forecasters say it will not erase ongoing drought stress.
• Marine risks increase on Lake Michigan late Thursday into Friday, with gusty northeasterly winds producing a dangerous 4–7 foot chop and life‑threatening currents.
• Behind the front, high pressure brings a mostly sunny, comfortably cool holiday weekend with highs in the 60s to mid‑70s and chilly mornings that could dip into the 40s, with isolated frost possible in northern inland Michigan.