Station CASM1 - 8418150 - Portland, ME
December 28, 2025 12:48 am ESTLocation: 43.656N 70.246W
Wind Direction: W (270°)
Wind Speed: 5.1 knots
Wind Gust: 6.0 knots
Atmospheric Pressure: 30.09 in (1019.1 mb)
Water Temperature: 34.7°F (1.5°C)
Overnight - 16°F
Dec 28, 2025
10 mph NW
Freezing Spray
Freezing spray. Mostly clear, with a low around 16. Northwest wind around 10 mph.
Sunday - 35°F
Dec 28, 2025
5 to 10 mph W
Mostly Sunny
Mostly sunny, with a high near 35. West wind 5 to 10 mph.
Sunday Night - 32°F
Dec 28, 2025
5 to 15 mph S
Mostly Cloudy then Rain
Rain after midnight. Mostly cloudy. Low around 32, with temperatures rising to around 39 overnight. South wind 5 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Monday - 45°F
Dec 29, 2025
15 mph S
Rain
Rain. Cloudy, with a high near 45. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Monday Night - 24°F
Dec 29, 2025
15 to 30 mph SW
Light Rain Likely then Slight Chance Light Snow
Rain likely before 1am, then a slight chance of snow between 1am and 2am. Mostly cloudy, with a low around 24. Southwest wind 15 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 70%.
Tuesday - 26°F
Dec 30, 2025
25 to 30 mph W
Partly Sunny
Partly sunny, with a high near 26.
Tuesday Night - 19°F
Dec 30, 2025
20 to 25 mph W
Partly Cloudy
Partly cloudy, with a low around 19.
Wednesday - 32°F
Dec 31, 2025
20 mph SW
Mostly Cloudy
Mostly cloudy, with a high near 32.
Wednesday Night - 19°F
Dec 31, 2025
15 to 20 mph W
Chance Light Snow
A chance of snow after 7pm. Mostly cloudy, with a low around 19. Chance of precipitation is 40%.
New Year's Day - 25°F
Jan 01, 2026
15 mph W
Chance Light Snow
A chance of snow. Partly sunny, with a high near 25. Chance of precipitation is 30%.
Thursday Night - 17°F
Jan 01, 2026
15 mph NW
Chance Light Snow
A chance of snow before 2am. Partly cloudy, with a low around 17. Chance of precipitation is 30%.
Friday - 25°F
Jan 02, 2026
15 mph NW
Partly Sunny
Partly sunny, with a high near 25.
Friday Night - 17°F
Jan 02, 2026
10 to 15 mph NW
Partly Cloudy
Partly cloudy, with a low around 17.
Saturday - 28°F
Jan 03, 2026
10 to 15 mph W
Mostly Sunny
Mostly sunny, with a high near 28.