Maine Weather Forecast

"If you don't like the weather, stick around, it'll change."

This old New England adage certainly holds true when talking about the Maine weather forecast.

As weather patterns move across Maine's hills and mountains, and chilly ocean waters interact with warmer land temperatures, you
can experience unique weather conditions in Maine...

...particularly along its thousands of miles of northern Atlantic coastline. And...

Since Maine is such a large state, extending 320 miles in length and 210 miles in width, weather conditions and temperatures can vary quite a bit from one region to the next.

Maine Weather from the Weather Channel

What can you expect for year round climate in Maine? Keeping in mind that temperatures usually decrease as you move northward through the state...

Weather, Portland Maine...
The above is a weather forecast for 04101 and 04102. For another Maine weather forecast enter the name of a city or town, or enter a zip code. Or, to read more about Portland, Maine weather...

Maine temperature during Summer: To most people, Maine's summer weather is Maine ideal. Statewide, the average high temperatures are in the low 70's, with the warmest days typically occurring in July. Rain storms and passing thunderstorms are not unusual, but sunshine and stray clouds dominate at this time of year.

Although areas of southern Maine may have days when the temperature exceeds 90, the rest of the state usually remains a bit cooler. Throughout the state nights are generally pleasantly comfortable.

Maine temperature during Winter: As the most northern of the continental United States, Maine can be quit cold during the winter months, with snow, sleet, freezing rain, freezing fog, nor'easter's and blizzards often forecast.

It is not unusual for interior and northern sections to have upwards of 40-50 days with sub-zero temperatures. During the coldest months of January and February, it is also common to experience sub-zero readings along the coast, and in southern Maine.

Maine temperature during Spring and Fall: During May and September temperatures are usually very comfortable, with readings in the 50's and 60's, and occasionally in the 70's. Evenings are cooler, but typically still warm enough for outdoor activities.

April and October are both cooler months, but on sunny days can be very pleasant. Do not be surprised if either of these months brings some snow flurries, or ever a bigger snow storm. However, any precipitation left behind will likely melt quickly.

During the summer...
Due to the cool ocean temperatures and sea breezes, the coast is usually cooler than inland areas.
During the winter...
Due to ocean temperatures that are warmer than the air, the coast is usually warmer than inland areas.

Find out for yourself what makes Maine's weather so unpredictable from former Maine State climatologist Gregory Zielinski, in his book, Conditions May Vary: A Guide to Maine Weather.

What to Wear in Maine

Are you traveling to Maine and wondering what to bring! My best advice...

...pack plenty of layers!

The atmosphere in Maine is very casual, with dress casual typically appropriate attire at even the most upscale restaurants.

In the summer you will probably do fine with...

...a lightweight jacket, a sweater and/or sweatshirt, a few long sleeve tops, a few short sleeve tops, one or two pairs of pants, a couple of pairs of shorts, a bathing suit, rain wear, and a hat for sun protection.

If you will be cruising on the Atlantic, or hiking in the Acadia National Park or on other mountains, you may want to include a heavier weight jacket. The morning fog that often occurs along Maine's coast can make for a chilly and damp start to your day.

Since the weather in Maine can change so rapidly, it is a good idea when heading out in the morning to bring along additional warmer weather, or cooler weather clothing.

Does your trip to Maine include a windjammer cruise?
If so, make sure you are using soft sided bags to bring on board AND that your footwear is appropriate!

If you will be in Maine in the winter...

...bring a warm, hooded winter coat, a scarf, a hat, gloves or mittens, a warm sweater or similar top, long sleeve shirts, and heavy weight long pants.

And...

If the Maine weather forecast is for really cold temperatures, you may want to consider some long johns!