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Portland, ME Weather Forecast
Portland, ME Weather Forecast Dated: 257 AM Wed Aug 19 2026 (Portland Time)
Wed, 19th Lo: 18°C64°F Hi: 25°C78°F |
Sunny Wednesday, temperatures as high as 78°F25°C, low temperature around 64°F18°C, chance of rain 19%, wind out of the SW 12 mph19 km/h. Barometric pressure 29.85 in1011 mb, visibility 5 mi8 km, humidity 87%. |
Thu, 20th Lo: 18°C65°F Hi: 23°C73°F |
Overcast Thursday, temperatures as high as 73°F23°C, low temperature around 65°F18°C, chance of rain 17%, wind out of the WSW 17 mph27 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 73%. |
| Fri, 21st Lo: 16°C61°F Hi: 22°C71°F |
Sunny Friday, temperatures as high as 71°F22°C, low temperature around 61°F16°C, chance of rain 4%, wind out of the WNW 13 mph21 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 62%. |
| Sat, 22nd Lo: 15°C60°F Hi: 19°C66°F |
Overcast Saturday, temperatures as high as 66°F19°C, low temperature around 60°F15°C, chance of rain 13%, wind out of the NE 10 mph16 km/h. Barometric pressure 30.12 in1020 mb, visibility 6 mi10 km, humidity 70%. |
| Sun, 23rd Lo: 16°C60°F Hi: 18°C64°F |
Overcast Sunday, temperatures as high as 64°F18°C, low temperature around 60°F16°C, chance of rain 32%, wind out of the E 10 mph16 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 87%. |
| Mon, 24th Lo: 17°C62°F Hi: 24°C75°F |
Overcast Monday, temperatures as high as 75°F24°C, low temperature around 62°F17°C, chance of rain 11%, wind out of the WSW 11 mph18 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 70%. |
| Tue, 25th Lo: 16°C61°F Hi: 20°C69°F |
Overcast Tuesday, temperatures as high as 69°F20°C, low temperature around 61°F16°C, chance of rain 13%, wind out of the SW 12 mph19 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 71%. |
| Wed, 26th Lo: 16°C61°F Hi: 18°C65°F |
Overcast Wednesday, temperatures as high as 65°F18°C, low temperature around 61°F16°C, chance of rain 62%, wind out of the ENE 9 mph14 km/h. Barometric pressure 30.06 in1018 mb, visibility 6 mi10 km, humidity 80%. |
| Thu, 27th Lo: 16°C60°F Hi: 17°C63°F |
Overcast Thursday, temperatures as high as 63°F17°C, low temperature around 60°F16°C, chance of rain 80%, wind out of the NE 11 mph18 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 90%. |
| Fri, 28th Lo: 14°C57°F Hi: 17°C63°F |
Overcast Friday, temperatures as high as 63°F17°C, low temperature around 57°F14°C, chance of rain 24%, wind out of the NE 14 mph22 km/h. Barometric pressure 30.12 in1020 mb, visibility 6 mi10 km, humidity 83%. |
| Sat, 29th Lo: 15°C58°F Hi: 18°C65°F |
Sunny Saturday, temperatures as high as 65°F18°C, low temperature around 58°F15°C, chance of rain 10%, wind out of the NE 9 mph15 km/h. Barometric pressure 30.15 in1021 mb, visibility 6 mi10 km, humidity 73%. |
| Sun, 30th Lo: 16°C61°F Hi: 20°C68°F |
Overcast Sunday, temperatures as high as 68°F20°C, low temperature around 61°F16°C, chance of rain 16%, wind out of the ENE 11 mph17 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 68%. |
| Mon, 31st Lo: 14°C57°F Hi: 18°C64°F |
Overcast Monday, temperatures as high as 64°F18°C, low temperature around 57°F14°C, chance of rain 57%, wind out of the NE 14 mph22 km/h. Barometric pressure 30.18 in1022 mb, visibility 6 mi9 km, humidity 70%. |
| Tue, 1st Lo: 12°C53°F Hi: 17°C62°F |
Overcast Tuesday, temperatures as high as 62°F17°C, low temperature around 53°F12°C, chance of rain 76%, wind out of the SSW 25 mph40 km/h. Barometric pressure 30.18 in1022 mb, visibility 6 mi10 km, humidity 72%. |
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