October in Maine is cool and the year's wettest month in the Portland normals: NOAA's 1991–2020 normals for Portland International Jetport give an average high of 59.5°F, a low of 41.0°F and 5.25 inches of precipitation, while Bangor's normals are a 58.2°F high and a 38.2°F low. Snow is nearly absent (0.2 inches at Portland). This page is a dated monthly snapshot reviewed October 20, 2026, not live weather or a live events feed.
Maine this month
A dated monthly snapshot of Maine weather normals and verified event dates.
This month at a glance
| Topic | Detail |
|---|---|
| Portland high / low | 59.5°F / 41.0°F (NOAA 1991–2020); 5.25 inches |
| Bangor high / low | 58.2°F / 38.2°F; 4.58 inches |
| Notes | Cadillac Summit Road reservations end October 25, 2026 |
For live conditions use the National Weather Service. See the events page.
How this page is maintained
We update it monthly; last review October 20, 2026. Between reviews it may be out of date.
Weather and what to wear
NOAA monthly normals.
Climate table →
This week
Verified schedule notes.
Events →
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Compare regions →Frequently asked questions
Is this page updated daily?
No. It is a monthly snapshot.
Where do the numbers come from?
NOAA NCEI climate normals and the agencies; see sources below.
What should I wear in October?
NOAA's normals suggest cool days and cold nights; bring layers and a rain jacket.
Sources
Facts on this page were read from the sources below on October 20, 2026. Hours, fares, prices and event dates change — confirm with the source before you travel. How we research and update.
- U.S. Climate Normals 1991-2020, Portland International Jetport (USW00014764) — NOAA National Centers for Environmental Information
- Fees & Passes, Acadia National Park — National Park Service