What is today's weather forecast for Castine, ME?

Today's forecast for Castine shows a low of 31 degrees Fahrenheit. Mostly cloudy, with a low around 31.

What is the 7-day weather forecast for Castine, ME?

The 7-day forecast for Castine shows highs from 27 to 51 degrees and lows from 16 to 40 degrees Fahrenheit. Expect precipitation on 5 days with chances of 20% or higher.

Will it rain in Castine, ME this week?

Yes, rain is possible in Castine this week. Precipitation chances: Thursday (50% chance), Friday (100% chance), Saturday (60% chance), Sunday (40% chance), Tuesday (30% chance).

How accurate is the Castine weather forecast?

WeatherForYou provides highly accurate Castine forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Castine, ME Weather Forecast and Current Conditions

WEATHER ALERTS - High Wind Watch

Current Conditions From Nearby Local Station

Switch to Metric Units

34°F
Feels Like 25°F

Humidity 78% Dew Point 28°F Wind SSE 12 MPH Gusts 19 Barometer 29.86 in.

Report from a MADIS/MESONET weather station 0.8 mi. N of central Castine
at 12:45 AM Wed, Dec 17, 2025

Point Forecast at a Glance

TueDec 16

WedDec 17

ThuDec 18

FriDec 19

100%

SatDec 20

SunDec 21

40%

MonDec 22

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

High temperatures start near 40°F, reaching 51°F before cooling to 27°F, then recovering to 27°F by week's end. Unsettled weather expected with rain on most days, including one day with snow.

Climate Context

This week's forecast shows temperatures running 3°F above the historical average for December. Normal highs for this period are around 36°F with lows around 20°F.

This Date in Weather History

1917 - An ice jam closed the Ohio River between Warsaw, KY, and Rising Sun, IN. The thirty foot high ice jam held for 58 days, and backed up the river a distance of 100 miles.

Castine, ME 7 Day Weather Forecast Details

Tuesday Dec 16

Night: Mostly cloudy, with a low around 31. Breezy, with a southwest wind 18 to 21 mph, with gusts as high as 34 mph.

Wednesday Dec 17

Day: Mostly sunny, with a high near 40. Breezy, with a southwest wind 18 to 24 mph, with gusts as high as 40 mph.

Night: Mostly clear, with a low around 29. Northwest wind 8 to 17 mph, with gusts as high as 30 mph.

Thursday Dec 18

Day: Mostly sunny, with a high near 45. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 29 mph.

Night: A chance of rain after 1am. Areas of fog after 9pm. Otherwise, mostly cloudy, with a low around 40. Breezy, with a south wind 20 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Friday Dec 19

Day: Rain. Areas of fog. High near 51. Windy, with a south wind 28 to 31 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Night: Rain likely, mainly before 9pm. Mostly cloudy, with a low around 25. Windy, with a west wind 24 to 28 mph, with gusts as high as 45 mph. Chance of precipitation is 60%.

Saturday Dec 20

Day: Mostly sunny, with a high near 35. Windy.

Night: A chance of snow before midnight, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 28. Chance of precipitation is 60%.

Sunday Dec 21

Day: A chance of rain, mainly before noon. Partly sunny, with a high near 40. Chance of precipitation is 40%.

Night: Partly cloudy, with a low around 20.

Monday Dec 22

Day: Mostly sunny, with a high near 27.

Night: Partly cloudy, with a low around 16.

Tuesday Dec 23

Day: A chance of snow. Partly sunny, with a high near 32. Chance of precipitation is 30%.

About Castine, ME

Castine ( kas-TEEN) is a town in Hancock County in eastern Maine, United States. The population was 1,320 at the 2020 census. Castine is the home of Maine Maritime Academy, a four-year institution that graduates officers and engineers for the United States Merchant Marine and marine related industries. Called Majabigwaduce by Tarrantine Abenaki Indians, Castine is one of the oldest towns in New England, predating the Plymouth Colony by seven years. Situated on Penobscot Bay, it is near the site of historic Fort Pentagouet. Few places in New England have had a more tumultuous history than Castine, which proclaims itself the "battle line of four nations." During the French colonial period of the 17th and early 18th century, Castine was the southern tip of Acadia, with New France defining the Kennebec River as the southern boundary of Acadia. The town is named after Jean-Vincent d'Abbadie de Saint-Castin.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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