Forecast Details for Montoursville, PA

Recent Locations: Montoursville, PA  
This Afternoon: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 86. West wind 6 to 9 mph. Chance of precipitation is 20%.
Tonight: Isolated showers between 2am and 3am. Partly cloudy, with a low around 61. Light southeast wind. Chance of precipitation is 20%.
Tuesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Light southeast wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 60. Northwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday: A chance of showers, mainly before 8am. Mostly sunny, with a high near 79. Northwest wind 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night: Mostly clear, with a low around 55.
Thursday: Mostly sunny, with a high near 81.
Thursday Night: Partly cloudy, with a low around 54.
Friday: Partly sunny, with a high near 77.
Friday Night: Mostly cloudy, with a low around 54.
Saturday: A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 50%.
Saturday Night: A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Sunday: A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 50%.

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Current U.S. National Radar--Current

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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