Forecast Details for Castine, ME

Recent Locations: Mount Lookout, WV Redvale, CO Castine, ME

This Afternoon: Partly sunny, with a high near 42. Northeast wind around 11 mph, with gusts as high as 22 mph.

Tonight: A slight chance of rain before 2am, then a slight chance of rain and sleet between 2am and 3am, then rain likely after 3am. Mostly cloudy, with a low around 35. Southeast wind 14 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. Little or no sleet accumulation expected.

Sunday: Rain, mainly before 5pm. Patchy fog after 10am. High near 43. Southeast wind 10 to 18 mph becoming southwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night: A chance of rain, mainly before 8pm. Patchy fog before midnight. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 37. West wind around 9 mph. Chance of precipitation is 30%.

Monday: Mostly sunny, with a high near 43. West wind around 15 mph, with gusts as high as 28 mph.

Monday Night: Partly cloudy, with a low around 30. West wind 5 to 9 mph.

Tuesday: A chance of snow. Partly sunny, with a high near 39. North wind 7 to 11 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 50%.

Tuesday Night: A slight chance of snow before 10pm. Partly cloudy, with a low around 23. Chance of precipitation is 20%.

Wednesday: Sunny, with a high near 39.

Wednesday Night: Mostly clear, with a low around 32.

Thursday: Mostly sunny, with a high near 44. Breezy.

Thursday Night: Mostly cloudy, with a low around 38. Breezy.

Friday: Mostly sunny, with a high near 48.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds