Forecast Details for Walnut, IA

Recent Locations: Stringer, MS Lodi, NJ Walnut, IA

Today: A 30 percent chance of showers, mainly after 5pm. Cloudy, with a high near 44. North northeast wind 11 to 13 mph.

Tonight: Snow showers likely, possibly mixed with rain, becoming all snow after 1am. Cloudy, with a low around 26. East northeast wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Tuesday: Snow showers likely before 1pm, then rain and snow showers likely between 1pm and 4pm, then a chance of rain showers after 4pm. Cloudy, with a high near 41. Breezy, with an east southeast wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Tuesday Night: A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 35. Breezy, with an east southeast wind 16 to 22 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 65. Windy, with a south wind 21 to 28 mph, with gusts as high as 34 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 42. Southwest wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: Showers likely. Mostly cloudy, with a high near 59. West wind 7 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 60%.

Thursday Night: A chance of showers. Mostly cloudy, with a low around 40. Northeast wind 7 to 9 mph.

Friday: A chance of showers. Partly sunny, with a high near 59. East northeast wind 9 to 11 mph, with gusts as high as 17 mph.

Friday Night: Showers likely. Mostly cloudy, with a low around 45. East wind around 10 mph, with gusts as high as 17 mph.

Saturday: Showers and thunderstorms likely. Cloudy, with a high near 66. Southeast wind 11 to 17 mph, with gusts as high as 24 mph.

Saturday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 55. South southeast wind around 15 mph, with gusts as high as 23 mph.

Sunday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Breezy, with a south wind 15 to 22 mph, with gusts as high as 29 mph.

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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