Forecast Details for Littleton, NH

Recent Locations: Nickerson, KS Thorsby, AL Littleton, NH

Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 44. Calm wind becoming west around 5 mph.

Tonight: Partly cloudy, with a low around 20. Calm wind.

Thursday: Partly sunny, with a high near 39. Calm wind.

Thursday Night: A 50 percent chance of snow after 10pm. Mostly cloudy, with a low around 23. Calm wind.

Friday: A chance of snow and freezing rain before 9am, then a chance of snow between 9am and 1pm. Mostly cloudy, with a high near 38. Calm wind becoming southeast around 5 mph. Chance of precipitation is 40%.

Friday Night: A chance of freezing rain between 2am and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

Saturday: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 51. Chance of precipitation is 60%.

Saturday Night: Rain likely, mainly before 7pm. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.

Sunday: Mostly sunny, with a high near 48.

Sunday Night: Partly cloudy, with a low around 30.

Monday: Sunny, with a high near 51.

Monday Night: Partly cloudy, with a low around 32.

Tuesday: Mostly sunny, with a high near 57.

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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