Forecast Details for South Portland, ME

Recent Locations: Lane, OK Miami Beach, FL South Portland, ME

Current Alerts for South Portland, ME: Winter Weather Advisory

Today: A slight chance of snow showers before 1pm, then a slight chance of snow showers after 5pm. Mostly cloudy, with a high near 40. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Tonight: A chance of rain and snow before 1am, then a chance of rain. Cloudy, with a low around 33. East wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Friday: Rain likely before 2pm, then a slight chance of showers between 2pm and 3pm. Cloudy, with a high near 56. South wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night: Mostly cloudy, with a low around 40. Southwest wind around 5 mph.

Saturday: Partly sunny, with a high near 51. North wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

Saturday Night: Showers likely, mainly after 4am. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.

Sunday: Showers. High near 53. Chance of precipitation is 90%.

Sunday Night: Showers likely, mainly before 7pm. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.

Monday: Mostly sunny, with a high near 49.

Monday Night: Partly cloudy, with a low around 31.

Tuesday: Mostly sunny, with a high near 45.

Tuesday Night: Partly cloudy, with a low around 25.

Wednesday: Sunny, with a high near 42.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What is Graupel?

Home - Education - Precipitation - Graupel

Graupel Next Topic: Hail

Graupel is a form of precipitation that is created by atmospheric conditions which cause supercooled water droplets to contact snow crystals and freeze to their surface.

Sometimes known as soft hail or snow pellets, graupel is delicate and easily destroyed by touch. Whereas hail usually falls during severe weather, graupel doesn't require such conditions to form, and can form in mild precipitation similar to situations which produce snowfall.

Next Topic: Hail

Weather Topic: What are Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

Hole Punch Clouds Next Topic: Mammatus Clouds

A hole punch cloud is an unusual occurrence when a disk-shaped hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.

When part of the cloud forms ice crystals, water droplets in the surrounding area of the cloud evaporate. The effect of this process produces a large elliptical gap in the cloud. The hole punch cloud formation is rare, but it is not specific to any geographic area.

Other names which have been used to describe this phenomena include fallstreak hole, skypunch, and cloud hole.

Next Topic: Mammatus Clouds