Forecast Details for Nyack, NY

Recent Locations: Greenwood Lake, NY Edinburg, TX Nyack, NY

Current Alerts for Nyack, NY: Air Quality Alert

Today: Rain, mainly after 4pm. Areas of fog. High near 40. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight: Rain, mainly before 10pm. Areas of fog before 4am. Low around 32. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Thursday: A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 41. North wind around 5 mph becoming east in the afternoon.

Thursday Night: Rain likely, possibly mixed with snow, mainly after 1am. Mostly cloudy, with a low around 32. East wind 3 to 6 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Friday: Rain, possibly mixed with snow, becoming all rain after 10am. High near 40. East wind around 8 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Friday Night: A 40 percent chance of rain before 1am. Mostly cloudy, with a low around 35.

Saturday: Partly sunny, with a high near 45.

Saturday Night: A chance of rain and snow after 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

Sunday: A 50 percent chance of snow. Cloudy, with a high near 36.

Sunday Night: Snow likely, mainly before 1am. Cloudy, with a low around 29. Chance of precipitation is 60%.

Monday: A 30 percent chance of snow. Mostly cloudy, with a high near 37.

Monday Night: Partly cloudy, with a low around 21.

Tuesday: Sunny, with a high near 31.

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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)

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 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