Current Conditions

South Portland, Maine

54°F12°C

Partly Cloudy

Wind

NNE 11 mph18 km/h

Humidity

71%

Cloud Cover

100%

As of Tuesday, September 22, 2026 at 5:22 AM EDT

Today's Outlook

Day

Partly cloudy and mild, with a high of 61°F16°C and morning low of 53°F12°C. Breezy from the NE at 8 to 11 mph13 to 18 km/h. Dry air.

Night

Mostly cloudy, with a low around 54°F12°C. Breezy from the NNE at 8 to 12 mph13 to 19 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 61°F16°C	Low 53°F12°C	Precip 0 in0 mm—	Cloud 53%	Wind NE 8 mph13 km/h	Tuesday: Partly cloudy and mild, with a high of 61°F16°C and morning low of 53°F12°C. Breezy from the NE at 8 to 11 mph13 to 18 km/h. Dry air. Tuesday Night: Mostly cloudy, with a low around 54°F12°C. Breezy from the NNE at 8 to 12 mph13 to 19 km/h.
Clear	High 60°F16°C	Low 51°F10°C	Precip 0 in0 mm—	Cloud 6%	Wind NE 9 mph14 km/h	Wednesday: Mostly clear and mild, with a high of 60°F16°C and morning low of 51°F11°C. Breezy from the NE at 10 to 11 mph16 to 18 km/h. Dry air. Wednesday Night: Mostly clear, with a low around 51°F10°C. Breezy from the NE at 7 to 11 mph12 to 18 km/h.
Clear	High 61°F16°C	Low 50°F10°CFeels 46°F8°C	Precip 0 in0 mm—	Cloud 21%	Wind NNE 7 mph11 km/h	Thursday: Mostly clear and mild, with a high of 61°F16°C and morning low of 50°F10°C. Breezy from the NE at 8 to 10 mph12 to 16 km/h. Dry air. Thursday Night: Partly cloudy, with a low around 50°F10°C. Breezy from the NNE at 6 to 9 mph10 to 14 km/h.
Drizzle	High 64°F18°C	Low 53°F12°C	Precip 0.04 in0.9 mm27%	Cloud 80%	Wind NNE 13 mph21 km/h	Friday: Overcast and mild, with a high of 64°F18°C and morning low of 55°F13°C. Breezy from the NNE at 13 to 14 mph21 to 22 km/h. Dry air. Friday Night: Mostly cloudy, with a low around 53°F12°C. Breezy from the NNE at 13 to 15 mph20 to 24 km/h. 27% chance of drizzle in the evening.
Rain	High 60°F15°C	Low 56°F13°C	Precip 0.72 in18.2 mm74%	Cloud 95%	Wind NNE 19 mph30 km/h	Saturday: Overcast and mild, with a high of 60°F15°C. Windy from the NNE at 19 to 20 mph31 to 32 km/h. 68% chance of rain throughout the day. Saturday Night: Overcast, with a low around 57°F14°C. Windy from the NNE at 18 to 20 mph30 to 32 km/h. 74% chance of rain throughout the night.
Rain	High 58°F15°C	Low 56°F14°C	Precip 0.95 in24.1 mm88%	Cloud 99%	Wind NE 19 mph30 km/h	Sunday: Overcast and mild, with a high of 58°F15°C. Windy from the NE at 19 mph31 km/h. 88% chance of rain throughout the day. Sunday Night: Overcast, with a low around 57°F14°C. Windy from the NE at 19 to 20 mph30 to 32 km/h. 83% chance of rain throughout the night.
Rain	High 58°F15°C	Low 56°F13°C	Precip 0.53 in13.4 mm82%	Cloud 92%	Wind NNE 14 mph23 km/h	Monday: Overcast and mild, with a high of 58°F15°C. Breezy from the NNE at 14 to 15 mph23 to 24 km/h. 80% chance of light rain throughout the day. Monday Night: Overcast, with a low around 56°F13°C. Windy from the NNE at 14 to 17 mph23 to 27 km/h. 82% chance of rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 22	61°F16°C	53°F12°C	0 in0 mm· —	53%	Partly Cloudy	NE 8 mph13 km/h
DayPartly cloudy and mild, with a high of 61°F16°C and morning low of 53°F12°C. Breezy from the NE at 8 to 11 mph13 to 18 km/h. Dry air. NightMostly cloudy, with a low around 54°F12°C. Breezy from the NNE at 8 to 12 mph13 to 19 km/h.
	WednesdaySep 23	60°F16°C	51°F10°C	0 in0 mm· —	6%	Clear	NE 9 mph14 km/h
DayMostly clear and mild, with a high of 60°F16°C and morning low of 51°F11°C. Breezy from the NE at 10 to 11 mph16 to 18 km/h. Dry air. NightMostly clear, with a low around 51°F10°C. Breezy from the NE at 7 to 11 mph12 to 18 km/h.
	ThursdaySep 24	61°F16°C	50°F10°C Feels 46°F8°C	0 in0 mm· —	21%	Clear	NNE 7 mph11 km/h
DayMostly clear and mild, with a high of 61°F16°C and morning low of 50°F10°C. Breezy from the NE at 8 to 10 mph12 to 16 km/h. Dry air. NightPartly cloudy, with a low around 50°F10°C. Breezy from the NNE at 6 to 9 mph10 to 14 km/h.
	FridaySep 25	64°F18°C	53°F12°C	0.04 in0.9 mm· 27%	80%	Drizzle	NNE 13 mph21 km/h
DayOvercast and mild, with a high of 64°F18°C and morning low of 55°F13°C. Breezy from the NNE at 13 to 14 mph21 to 22 km/h. Dry air. NightMostly cloudy, with a low around 53°F12°C. Breezy from the NNE at 13 to 15 mph20 to 24 km/h. 27% chance of drizzle in the evening.
	SaturdaySep 26	60°F15°C	56°F13°C	0.72 in18.2 mm· 74%	95%	Rain	NNE 19 mph30 km/h
DayOvercast and mild, with a high of 60°F15°C. Windy from the NNE at 19 to 20 mph31 to 32 km/h. 68% chance of rain throughout the day. NightOvercast, with a low around 57°F14°C. Windy from the NNE at 18 to 20 mph30 to 32 km/h. 74% chance of rain throughout the night.
	SundaySep 27	58°F15°C	56°F14°C	0.95 in24.1 mm· 88%	99%	Rain	NE 19 mph30 km/h
DayOvercast and mild, with a high of 58°F15°C. Windy from the NE at 19 mph31 km/h. 88% chance of rain throughout the day. NightOvercast, with a low around 57°F14°C. Windy from the NE at 19 to 20 mph30 to 32 km/h. 83% chance of rain throughout the night.
	MondaySep 28	58°F15°C	56°F13°C	0.53 in13.4 mm· 82%	92%	Rain	NNE 14 mph23 km/h
DayOvercast and mild, with a high of 58°F15°C. Breezy from the NNE at 14 to 15 mph23 to 24 km/h. 80% chance of light rain throughout the day. NightOvercast, with a low around 56°F13°C. Windy from the NNE at 14 to 17 mph23 to 27 km/h. 82% chance of rain throughout the night.
	TuesdaySep 29	60°F16°C	56°F13°C	0.12 in3.1 mm· 45%	71%	Light Rain	N 9 mph15 km/h
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 56°F13°C. Breezy from the NNE at 9 to 10 mph15 to 17 km/h. 33% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the N at 9 to 11 mph15 to 18 km/h. 45% chance of showers throughout the night.
	WednesdaySep 30	60°F16°C	55°F13°C	0.06 in1.5 mm· 13%	62%	Drizzle	NE 7 mph12 km/h
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 55°F13°C. Breezy from the ENE at 7 to 8 mph12 to 13 km/h. 10% chance of drizzle throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the N at 8 mph12 km/h. 13% chance of drizzle throughout the night.
	ThursdayOct 1	60°F16°C	56°F13°C	0.11 in2.8 mm· 18%	71%	Light Rain	SSE 9 mph14 km/h
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 56°F13°C. Breezy from the SE at 9 to 10 mph15 to 16 km/h. 17% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the S at 9 to 10 mph14 to 16 km/h. 18% chance of showers throughout the night.
	FridayOct 2	60°F16°C	56°F13°C	0.21 in5.3 mm· 25%	66%	Showers	SSW 10 mph16 km/h
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 56°F13°C. Breezy from the S at 10 mph16 km/h. 24% chance of showers throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the WSW at 10 mph16 km/h. 25% chance of showers throughout the night.
	SaturdayOct 3	60°F15°C	55°F13°C	0.2 in5.2 mm· 23%	58%	Showers	NNW 10 mph16 km/h
DayMostly cloudy and mild, with a high of 60°F15°C. Breezy from the NNW at 10 mph16 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the NNW at 10 mph16 km/h. 23% chance of showers throughout the night.
	SundayOct 4	59°F15°C	54°F12°C	0.13 in3.4 mm· 15%	59%	Showers	NW 10 mph16 km/h
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 54°F12°C. Breezy from the NW at 9 to 10 mph15 to 16 km/h. 13% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 54°F12°C. Breezy from the NW at 10 mph16 km/h. 15% chance of showers throughout the night.
	MondayOct 5	59°F15°C	54°F12°C	0.15 in3.8 mm· 19%	56%	Showers	W 10 mph15 km/h
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 54°F12°C. Breezy from the W at 9 to 10 mph15 to 16 km/h. 19% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 54°F12°C. Breezy from the WNW at 10 mph16 km/h. 18% chance of showers throughout the night.
	TuesdayOct 6	59°F15°C	53°F12°C	0.15 in3.7 mm· 18%	57%	Showers	W 10 mph16 km/h
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 53°F12°C. Breezy from the W at 10 to 11 mph16 to 17 km/h. 18% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 54°F12°C. Breezy from the W at 10 to 11 mph16 to 17 km/h. 16% chance of drizzle throughout the night.

Nearby Cities

Portland1 mi2 km South Portland Gardens4 mi6 km Westbrook7 mi11 km West Scarborough9 mi14 km Saco14 mi23 km Biddeford15 mi24 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 43.6415°N, 70.2409°W·Elevation: 7m·Timezone: America/New_York·Population: 25,556