Forecast Details for Palmyra, PA

Recent Locations: Danvers, MA Andover, MA Palmyra, PA

Current Alerts for Palmyra, PA: Winter Weather Advisory

Tonight: A chance of snow showers after 4am, mixing with freezing rain after 5am. Mostly cloudy, with a low around 27. South wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday: Rain, snow, and freezing rain before 10am, then rain and snow between 10am and 1pm, then rain after 1pm. High near 39. Southeast wind around 6 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

Tuesday Night: Showers. Low around 37. Light and variable wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday: A chance of showers after 1pm. Mostly cloudy, with a high near 55. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night: Showers likely, mainly after 1am. Cloudy, with a low around 43. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday: A chance of showers. Cloudy, with a high near 60. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night: Showers likely. Cloudy, with a low around 48. Chance of precipitation is 70%.

Friday: Partly sunny, with a high near 67.

Friday Night: Mostly cloudy, with a low around 47.

Saturday: Partly sunny, with a high near 66.

Saturday Night: A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.

Sunday: A chance of showers. Mostly cloudy, with a high near 71. Chance of precipitation is 40%.

Sunday Night: A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

Monday: A chance of showers. Mostly cloudy, with a high near 69. 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 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