Forecast Details for West Groton, MA

Recent Locations: West Groton, MA

Today: Mostly sunny, with a high near 63. Calm wind becoming east 5 to 8 mph in the morning.

Tonight: Increasing clouds, with a low around 43. East wind around 6 mph becoming calm in the evening.

Sunday: A chance of rain, mainly after noon. Cloudy, with a high near 57. South wind 5 to 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night: Rain before 9pm, then showers, mainly after 9pm. Low around 47. South wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Monday: A chance of showers, mainly before 1pm. Partly sunny, with a high near 74. West wind 7 to 9 mph. Chance of precipitation is 40%.

Monday Night: A slight chance of showers between 7pm and 8pm. Partly cloudy, with a low around 50. Northwest wind around 7 mph. Chance of precipitation is 20%.

Tuesday: Mostly sunny, with a high near 80. West wind 6 to 10 mph.

Tuesday Night: Mostly cloudy, with a low around 50. Northwest wind 6 to 8 mph.

Wednesday: A chance of showers. Mostly cloudy, with a high near 65. Southeast wind 8 to 11 mph. Chance of precipitation is 40%.

Wednesday Night: A chance of showers before 5am. Mostly cloudy, with a low around 47. East wind around 10 mph becoming west in the evening. Chance of precipitation is 50%.

Thursday: A chance of showers. Mostly cloudy, with a high near 63. East wind 8 to 11 mph. Chance of precipitation is 40%.

Thursday Night: A chance of showers. Mostly cloudy, with a low around 47. East wind around 11 mph. Chance of precipitation is 50%.

Friday: A chance of showers. Mostly cloudy, with a high near 62. Northeast wind 10 to 15 mph becoming southeast in the afternoon. Chance of precipitation is 30%.

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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 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