Forecast Details for Osterville, MA

Recent Locations: Sugar Grove, IL Copeville, TX Osterville, MA

Tonight: A slight chance of showers between midnight and 2am. Patchy fog between 9pm and 2am. Otherwise, mostly cloudy, with a low around 50. South wind 6 to 11 mph. Chance of precipitation is 20%.

Friday: A chance of showers and thunderstorms between 7am and 11am, then a slight chance of showers. Patchy fog before 8am. Otherwise, partly sunny, with a high near 64. West wind around 7 mph becoming north in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night: A chance of showers before 8pm. Patchy fog between 2am and 4am. Otherwise, mostly cloudy, with a low around 45. Northeast wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Patchy fog between 7am and 9am. Otherwise, mostly cloudy, with a high near 53. Northeast wind 6 to 8 mph.

Saturday Night: Cloudy, with a low around 45. East wind around 5 mph becoming south after midnight.

Sunday: Showers likely, mainly after 2pm. Cloudy, with a high near 56. South wind 8 to 11 mph. Chance of precipitation is 60%.

Sunday Night: Showers likely, mainly before 9pm. Mostly cloudy, with a low around 37. West wind around 11 mph. Chance of precipitation is 60%.

Monday: Mostly sunny, with a high near 47. West wind 11 to 13 mph.

Monday Night: Partly cloudy, with a low around 33. Northwest wind around 10 mph.

Tuesday: Sunny, with a high near 48. Northwest wind 8 to 10 mph becoming southwest in the afternoon.

Tuesday Night: Partly cloudy, with a low around 41. Southwest wind around 11 mph.

Wednesday: Partly sunny, with a high near 54. Southwest wind 10 to 13 mph.

Wednesday Night: Partly cloudy, with a low around 42. Southwest wind around 8 mph.

Thursday: Mostly sunny, with a high near 53. West wind around 8 mph.

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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 Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow

Weather Topic: What are Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds