Portland, Maine — A sharp return to near-freezing temperatures will hit Maine starting Friday, May 8, bringing frost, gusty winds, and scattered rain that could disrupt travel and outdoor activity across Portland, Bangor, Augusta, Lewiston, and Presque Isle.
According to NOAA’s Climate Prediction Center, temperatures will run 50–60% below normal through May 14, with the coldest air arriving Friday night into early Saturday. The most critical window is from 12 a.m. to 7 a.m. Saturday, when temperatures are expected to fall to or below 32 degrees across much of the state.
That drop will create immediate impacts. Frost is likely on exposed surfaces, including bridges and overpasses along I-95 and I-295, increasing the risk of slick spots for early morning drivers. In northern areas such as Presque Isle and higher elevations, brief snow flurries are possible, which could reduce visibility and create light coatings on grassy and elevated surfaces.
Rain showers will move through Friday night, leading to wet roads and water pooling in low-lying areas, including flood-prone intersections in Portland and drainage areas near the Kennebec River in Augusta. This is part of a broader pattern pushing colder air into the Northeast while drawing in Atlantic moisture.
Winds will strengthen Saturday into Sunday, with gusts reaching 35 to 40 mph. Those winds could bring down small branches and cause isolated power outages, especially in coastal and wooded areas.
Drivers should slow down on wet or slick roads, particularly before sunrise, and avoid low-lying roads where water collects. Residents should cover sensitive plants and secure outdoor items ahead of the wind.
The highest risk for freezing conditions and hazardous travel peaks early Saturday between 12 a.m. and 7 a.m.
