Forecast Details for Worcester, MA

Recent Locations: Cambridge, MA Akron, OH Worcester, MA

Current Alerts for Worcester, MA: Winter Weather Advisory

Overnight: Snow, mainly after 2am. Low around 18. Calm wind. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.

Saturday: Snow. High near 25. Light north wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Saturday Night: A chance of snow before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Wind chill values as low as -19. Northwest wind around 15 mph, with gusts as high as 36 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Sunday: Sunny, with a high near 15. Wind chill values as low as -20. Northwest wind 13 to 15 mph, with gusts as high as 30 mph.

Sunday Night: Mostly clear, with a low around 0. Northwest wind 8 to 10 mph, with gusts as high as 24 mph.

Monday: Sunny, with a high near 24. Northwest wind 7 to 10 mph.

Monday Night: Partly cloudy, with a low around 7. Northwest wind around 6 mph.

Tuesday: Sunny, with a high near 31. Northwest wind around 7 mph.

Tuesday Night: Partly cloudy, with a low around 12. Northwest wind 3 to 5 mph.

Wednesday: A chance of snow after 1pm. Mostly cloudy, with a high near 32. North wind 3 to 6 mph. Chance of precipitation is 30%.

Wednesday Night: A chance of snow. Mostly cloudy, with a low around 18. Northwest wind around 6 mph. Chance of precipitation is 40%.

Thursday: A chance of snow. Partly sunny, with a high near 32. Northwest wind 6 to 9 mph. Chance of precipitation is 30%.

Thursday Night: A chance of snow. Mostly cloudy, with a low around 16. Northwest wind around 7 mph. Chance of precipitation is 30%.

Friday: Mostly cloudy, with a high near 31. Northwest wind 7 to 10 mph.

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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 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

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