Forecast Details for Chelsea, MA

Recent Locations: Chelsea, MA

Today: A chance of showers and thunderstorms, mainly after 4pm. Some of the storms could be severe. Increasing clouds and hot, with a high near 92. South wind 7 to 9 mph. Chance of precipitation is 30%.

Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers after 4am. Some of the storms could be severe. Mostly cloudy, with a low around 73. Southwest wind 6 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday: Showers and thunderstorms likely before 9am, then showers likely between 9am and 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 86. Southwest wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 68. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday: Sunny, with a high near 79. Northeast wind around 10 mph.

Friday Night: Mostly clear, with a low around 63. Light and variable wind.

Saturday: Sunny, with a high near 83. Calm wind becoming southeast 5 to 9 mph in the morning.

Saturday Night: Mostly clear, with a low around 67. Southwest wind around 7 mph.

Sunday: Mostly sunny and hot, with a high near 90. Southwest wind 7 to 10 mph.

Sunday Night: A chance of showers between 7pm and 2am. Partly cloudy, with a low around 67. Southwest wind around 8 mph becoming northwest after midnight. Chance of precipitation is 30%.

Monday: Mostly sunny, with a high near 77. North wind around 9 mph.

Monday Night: Partly cloudy, with a low around 61. Southeast wind around 5 mph becoming light and variable.

Tuesday: Mostly sunny, with a high near 74. North wind 6 to 8 mph.

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North America Water Vapor (Moisture)

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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