Station CASM1 - 8418150 - Portland, ME
December 20, 2025 7:30 am ESTLocation: 43.656N 70.246W
Wind Direction: W (260°)
Wind Speed: 8.9 knots
Wind Gust: 13.0 knots
Atmospheric Pressure: 29.90 in (1012.4 mb)
Air Temperature: 31.5°F (-0.3°C)
Water Temperature: 39.6°F (4.2°C)
Today - 40°F
Dec 20, 2025
10 to 20 mph W
Mostly Sunny
Mostly sunny, with a high near 40. West wind 10 to 20 mph, with gusts as high as 30 mph.
Tonight - 35°F
Dec 20, 2025
15 to 30 mph SW
Mostly Cloudy then Slight Chance Rain And Snow
A slight chance of rain and snow between 3am and 5am. Mostly cloudy, with a low around 35. Southwest wind 15 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
Sunday - 42°F
Dec 21, 2025
20 to 25 mph W
Mostly Sunny
Mostly sunny. High near 42, with temperatures falling to around 36 in the afternoon. West wind 20 to 25 mph, with gusts as high as 35 mph.
Sunday Night - 23°F
Dec 21, 2025
20 mph NW
Mostly Clear
Mostly clear, with a low around 23. Northwest wind around 20 mph, with gusts as high as 30 mph.
Monday - 30°F
Dec 22, 2025
15 to 20 mph NW
Sunny
Sunny, with a high near 30. Northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night - 25°F
Dec 22, 2025
10 to 15 mph W
Partly Cloudy
Partly cloudy, with a low around 25.
Tuesday - 37°F
Dec 23, 2025
10 to 15 mph S
Light Snow Likely
Snow likely between 7am and 2pm, then rain and snow likely. Cloudy, with a high near 37. Chance of precipitation is 70%.
Tuesday Night - 30°F
Dec 23, 2025
15 to 20 mph W
Rain And Snow Likely
Rain and snow likely before 4am. 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 - 27°F
Dec 24, 2025
5 to 15 mph NW
Mostly Cloudy
Mostly cloudy, with a low around 27.
Christmas Day - 40°F
Dec 25, 2025
10 to 15 mph SW
Slight Chance Light Snow then Chance Light Rain
A slight chance of snow between 9am and 11am, then a chance of rain. Partly sunny, with a high near 40. Chance of precipitation is 40%.
Thursday Night - 35°F
Dec 25, 2025
15 mph SW
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Friday - 43°F
Dec 26, 2025
15 mph W
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Friday Night - 29°F
Dec 26, 2025
15 mph NW
Chance Light Rain then Slight Chance Light Snow
A chance of rain before midnight, then a slight chance of snow. Mostly cloudy, with a low around 29.