Forecast Details for Fort Calhoun, NE

Recent Locations: Pepin, WI Rodeo, CA Fort Calhoun, NE

Tonight: Areas of frost after 1am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 31. Blustery, with a west northwest wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 29 mph.

Sunday: Areas of frost before 10am. Otherwise, sunny, with a high near 62. West northwest wind 6 to 10 mph, with gusts as high as 17 mph.

Sunday Night: Increasing clouds, with a low around 34. North wind 6 to 8 mph.

Monday: A 40 percent chance of rain, mainly before 1pm. Mostly cloudy, with a high near 46. North northeast wind 8 to 10 mph, with gusts as high as 17 mph.

Monday Night: A slight chance of rain and snow before 10pm, then a chance of snow. Cloudy, with a low around 29. North northeast wind 8 to 10 mph becoming east after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday: A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 46. Southeast wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 39. Breezy, with a southeast wind 16 to 21 mph, with gusts as high as 31 mph.

Wednesday: A chance of rain, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 70. Breezy, with a south wind 21 to 24 mph, with gusts as high as 34 mph.

Wednesday Night: A chance of rain and thunderstorms. Mostly cloudy, with a low around 41. West southwest wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 22 mph.

Thursday: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 56. Northeast wind 10 to 14 mph, with gusts as high as 22 mph.

Thursday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 41. East wind around 11 mph, with gusts as high as 18 mph.

Friday: Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 61. East southeast wind 11 to 14 mph, with gusts as high as 21 mph.

Friday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 45. East southeast wind around 10 mph, with gusts as high as 17 mph.

Saturday: Rain likely. Mostly cloudy, with a high near 61. East wind 10 to 13 mph, with gusts as high as 21 mph.

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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