Forecast Details for Lemont Furnace, PA

Recent Locations: Plattsmouth, NE Alicia, AR Lemont Furnace, PA

This Afternoon: Mostly sunny, with a high near 88. West wind around 5 mph becoming calm.

Tonight: Scattered showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 83. Southwest wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: Showers and thunderstorms before 5am, then scattered showers. Patchy fog after 10pm. Low around 68. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: Scattered showers before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 82. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night: A chance of showers before 8pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 64. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Friday: Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 86.

Friday Night: Mostly clear, with a low around 66.

Saturday: Sunny, with a high near 87.

Saturday Night: Mostly clear, with a low around 67.

Sunday: Sunny and hot, with a high near 90.

Sunday Night: Partly cloudy, with a low around 69.

Monday: Patchy fog. Otherwise, mostly sunny, with a high near 88.

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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