Forecast Details for Creston, IA

Recent Locations: Creston, IA  
Today: A 50 percent chance of showers and thunderstorms before 10am. Mostly cloudy, with a high near 62. Breezy, with a west wind 13 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight: Mostly cloudy, then gradually becoming clear, with a low around 42. North wind 6 to 13 mph.
Sunday: Sunny, with a high near 65. Light and variable wind becoming east 5 to 10 mph in the morning.
Sunday Night: Partly cloudy, with a low around 49. East southeast wind 8 to 10 mph.
Monday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 74. Windy, with a southeast wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night: Showers and possibly a thunderstorm. Low around 52. Windy. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 74. Breezy.
Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 52.
Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 72. Chance of precipitation is 30%.
Wednesday Night: Mostly clear, with a low around 47.
Thursday: Mostly sunny, with a high near 68. Breezy.
Thursday Night: Partly cloudy, with a low around 46. Breezy.
Friday: Mostly sunny, with a high near 65. Breezy.

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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