Station CASM1 - 8418150 - Portland, ME
December 19, 2025 6:48 pm ESTLocation: 43.656N 70.246W
Wind Direction: SW (230°)
Wind Speed: 6.0 knots
Wind Gust: 8.0 knots
Atmospheric Pressure: 29.16 in (987.4 mb)
Tonight - 28°F
Dec 19, 2025
30 to 35 mph W
Slight Chance Rain Showers then Partly Cloudy
A slight chance of rain showers between 8pm and 10pm. Partly cloudy, with a low around 28. West wind 30 to 35 mph, with gusts as high as 45 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Saturday - 40°F
Dec 20, 2025
15 to 25 mph W
Mostly Sunny
Mostly sunny, with a high near 40. West wind 15 to 25 mph, with gusts as high as 40 mph.
Saturday Night - 34°F
Dec 20, 2025
15 to 30 mph SW
Mostly Cloudy
Mostly cloudy, with a low around 34. Southwest wind 15 to 30 mph, with gusts as high as 45 mph.
Sunday - 42°F
Dec 21, 2025
20 to 25 mph W
Mostly Sunny
Mostly sunny, with a high near 42. West wind 20 to 25 mph, with gusts as high as 35 mph.
Sunday Night - 23°F
Dec 21, 2025
25 mph NW
Partly Cloudy
Partly cloudy, with a low around 23. Northwest wind around 25 mph, with gusts as high as 35 mph.
Monday - 29°F
Dec 22, 2025
15 to 20 mph NW
Sunny
Sunny, with a high near 29.
Monday Night - 24°F
Dec 22, 2025
10 to 15 mph W
Partly Cloudy
Partly cloudy, with a low around 24.
Tuesday - 36°F
Dec 23, 2025
10 to 20 mph SW
Light Snow
Snow before 2pm, then rain and snow. Cloudy, with a high near 36. Chance of precipitation is 80%.
Tuesday Night - 30°F
Dec 23, 2025
15 to 20 mph W
Rain And Snow Likely
Rain and snow likely before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Wednesday - 35°F
Dec 24, 2025
15 to 20 mph NW
Mostly Sunny
Mostly sunny, with a high near 35.
Wednesday Night - 26°F
Dec 24, 2025
5 to 15 mph NW
Mostly Cloudy
Mostly cloudy, with a low around 26.
Christmas Day - 37°F
Dec 25, 2025
10 to 15 mph SW
Partly Sunny then Chance Light Rain
A chance of rain after noon. Partly sunny, with a high near 37. Chance of precipitation is 30%.
Thursday Night - 33°F
Dec 25, 2025
15 mph S
Chance Rain And Snow
A chance of rain before 8pm, then a chance of rain and snow between 8pm and 1am, then rain and snow likely. Cloudy, with a low around 33. Chance of precipitation is 60%.
Friday - 41°F
Dec 26, 2025
15 to 20 mph SW
Chance Rain And Snow
A chance of rain and snow. Mostly cloudy, with a high near 41.