Historical weather data, all-time temperature records, and monthly climate averages for Lewiston, ME. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Lewiston is a coin-flip kind of day — there's a 50% chance of precipitation and a 16% chance it comes down as snow, which tracks for early spring in Maine. Historically, the date swings hard: a balmy 78° back in 2010, and a brutal 12° low in 1995. Expect something in between, with an average high of 47° and a low of 28°.
Lewiston earns its weather stripes at the extremes — from a scorching 99° on June 25, 2025, to a teeth-chattering -27° on January 16, 2009, a swing of 126 degrees. The snowiest single day on record dropped 20.4 inches on January 28, 2015, while the wettest day ever brought nearly 6 inches of rain on June 14, 1998.
Summer is the sweet spot, with mid-July averages peaking around 81° before a gradual slide into fall. Winters are serious — late January highs scrape 29°, and January and February are firmly below freezing territory. If you're planning around rain, late November into early December is the wettest stretch of the year.