Station CASM1 - 8418150 - Portland, ME
December 17, 2025 12:30 am ESTLocation: 43.656N 70.246W
Wind Direction: SSW (200°)
Wind Speed: 9.9 knots
Wind Gust: 12.1 knots
Atmospheric Pressure: 29.94 in (1014.0 mb)
Air Temperature: 30.9°F (-0.6°C)
Water Temperature: 37.9°F (3.3°C)
Overnight - 31°F
Dec 17, 2025
20 to 25 mph SW
Mostly Cloudy
Mostly cloudy, with a low around 31. Southwest wind 20 to 25 mph, with gusts as high as 35 mph.
Wednesday - 43°F
Dec 17, 2025
25 mph SW
Mostly Sunny
Mostly sunny, with a high near 43. Southwest wind around 25 mph, with gusts as high as 40 mph.
Wednesday Night - 32°F
Dec 17, 2025
5 to 25 mph W
Mostly Clear
Mostly clear, with a low around 32. West wind 5 to 25 mph, with gusts as high as 35 mph.
Thursday - 46°F
Dec 18, 2025
5 to 15 mph SW
Mostly Sunny
Mostly sunny, with a high near 46. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night - 43°F
Dec 18, 2025
20 to 25 mph S
Light Rain Likely
Rain likely after 11pm. Mostly cloudy, with a low around 43. South wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.
Friday - 51°F
Dec 19, 2025
30 to 35 mph S
Rain
Rain. Cloudy, with a high near 51. Chance of precipitation is 100%.
Friday Night - 27°F
Dec 19, 2025
30 to 35 mph W
Chance Light Rain then Partly Cloudy
A chance of rain before 8pm. Partly cloudy, with a low around 27. Chance of precipitation is 40%.
Saturday - 38°F
Dec 20, 2025
15 to 25 mph W
Mostly Sunny
Mostly sunny, with a high near 38.
Saturday Night - 33°F
Dec 20, 2025
15 to 25 mph SW
Chance Light Snow
A chance of snow between 8pm and midnight, then a chance of rain and snow. Cloudy, with a low around 33. Chance of precipitation is 40%.
Sunday - 42°F
Dec 21, 2025
20 to 25 mph SW
Chance Light Rain
A chance of rain before 2pm. Partly sunny, with a high near 42. Chance of precipitation is 40%.
Sunday Night - 24°F
Dec 21, 2025
15 to 25 mph W
Partly Cloudy
Partly cloudy, with a low around 24.
Monday - 30°F
Dec 22, 2025
15 mph NW
Sunny
Sunny, with a high near 30.
Monday Night - 20°F
Dec 22, 2025
10 to 15 mph NW
Partly Cloudy
Partly cloudy, with a low around 20.
Tuesday - 34°F
Dec 23, 2025
10 to 20 mph W
Chance Light Snow
A chance of snow after 9am. Partly sunny, with a high near 34.