Portland, ME weather, straight from the source.

Official National Weather Service forecasts, active alerts, rain timing, and radar for Portland, ME.

What’s next

Hourly forecast

⌖ Portland, ME

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Portland, ME. Forecasts and alerts update from NOAA and the National Weather Service.

Next 24 hours

Rain Timeline

Retrieving weather data

Official NWS outlook

7-Day Forecast

High / low temperatures

Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.

Southern Maine Coast

Weather planning for Portland, ME

Portland, ME is in Southern Maine Coast. Plans may be affected by coastal storms, heavy rain, strong wind, snow, ice, heat, and sharp temperature changes.

Cumberland County · Southern Maine Coast

Conditions to watch

Coastal storms
Heavy rain
Snow and ice
Strong wind

Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +

Wind gust—

Pressure—

Visibility—

Peak rain chanceUnavailable

Dew point—

Active alerts—

Official risk outlooks

These national tools add expert storm, heavy-rain and flooding context to your local forecast.

NOAA severe-storm outlook ↗NOAA excessive-rain outlook ↗National river and flood conditions ↗Local NWS forecast office ↗

Official NOAA / NWSWSR-88D DopplerUpdates every 5 minutes

Live Doppler radar

Animated Multi-Radar/Multi-Sensor reflectivity from the National Weather Service’s network of Doppler radars. Search a U.S. city, ZIP code, or street address to center the map on local weather, then zoom to neighborhood street detail.

Open full NWS Doppler radar ↗

Live radar is ready when you need it.

The interactive map stays off until opened to keep forecasts fast.

Doppler radar and warnings: NOAA/National Weather Service · Map: OpenFreeMap, OpenMapTiles and OpenStreetMap contributors. Radar can be delayed briefly during service updates.

MyUSA.us is not affiliated with or endorsed by NOAA or the National Weather Service. For life-threatening weather, follow official NWS alerts and local authorities.

Shopping, errands, and outdoor plans

Best time to go out

Better local weather windows calculated from the latest official hourly forecast for Portland, ME.

⌖ Next 12 hours

“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.

Official traveler information