Forecast Details for Henniker, NH

Recent Locations: Zearing, IA Easthampton, MA Henniker, NH

Overnight: Rain showers likely before 5am, then rain showers and sleet likely. Cloudy, with a low around 33. Northeast wind around 5 mph. Chance of precipitation is 60%. Total nighttime sleet accumulation of less than a half inch possible.

Thursday: Rain showers and sleet likely, possibly mixed with snow showers before 10am, then a chance of rain showers. Cloudy, with a high near 39. East wind around 5 mph. Chance of precipitation is 60%. New snow and sleet accumulation of less than a half inch possible.

Thursday Night: A chance of rain and snow before 10pm, then rain likely. Patchy fog after 2am. Otherwise, cloudy, with a low around 32. East wind around 5 mph becoming calm. Chance of precipitation is 60%. Little or no snow accumulation expected.

Friday: A 30 percent chance of rain before 9am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.

Friday Night: Mostly cloudy, with a low around 47. Southwest wind around 5 mph.

Saturday: Partly sunny, with a high near 59.

Saturday Night: A 40 percent chance of showers after 10pm. Cloudy, with a low around 35.

Sunday: Showers, mainly before 2pm. High near 57. Chance of precipitation is 90%.

Sunday Night: A 30 percent chance of showers before 9pm. Mostly cloudy, with a low around 34.

Monday: Mostly sunny, with a high near 48.

Monday Night: Mostly cloudy, with a low around 29.

Tuesday: Mostly sunny, with a high near 45.

Tuesday Night: Partly cloudy, with a low around 22.

Wednesday: Sunny, with a high near 46.

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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