Forecast Details for South Walpole, MA

Recent Locations: Scandinavia, WI Beachwood, NJ South Walpole, MA

Tonight: A chance of showers, mainly between 2am and 5am. Patchy fog after 3am. Otherwise, cloudy, with a low around 37. Southeast wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Sunday: A slight chance of showers, then showers and possibly a thunderstorm after 1pm. Patchy fog before 10am. High near 56. Southwest wind 7 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night: Showers likely, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 36. West wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Monday: Mostly sunny, with a high near 52. West wind 9 to 11 mph, with gusts as high as 22 mph.

Monday Night: A slight chance of rain after 1am, mixing with snow after 5am. Partly cloudy, with a low around 33. West wind 3 to 6 mph. Chance of precipitation is 20%.

Tuesday: A chance of rain and snow showers before 10am, then a chance of rain showers. Partly sunny, with a high near 48. Northwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Tuesday Night: Mostly clear, with a low around 25. Northwest wind around 7 mph.

Wednesday: Sunny, with a high near 48. North wind around 6 mph becoming south in the afternoon.

Wednesday Night: Clear, with a low around 30. South wind around 6 mph.

Thursday: Mostly sunny, with a high near 56. South wind 6 to 11 mph, with gusts as high as 23 mph.

Thursday Night: Partly cloudy, with a low around 41. South wind around 8 mph.

Friday: Mostly sunny, with a high near 63. West wind 6 to 9 mph.

Friday Night: Partly cloudy, with a low around 41. South wind around 7 mph.

Saturday: Mostly sunny, with a high near 63. West wind 6 to 8 mph becoming southwest in the afternoon.

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North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds