Forecast Details for Dunkerton, IA

Recent Locations: Higden, AR Portland, NY Dunkerton, IA

Current Alerts for Dunkerton, IA: Flood Warning

Today: Mostly cloudy, with a high near 44. Breezy, with a north northwest wind 16 to 18 mph, with gusts as high as 26 mph.

Tonight: Mostly cloudy, with a low around 23. North northwest wind 9 to 14 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

Tuesday: A 20 percent chance of snow showers after 1pm. Partly sunny, with a high near 42. East northeast wind 8 to 15 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph.

Tuesday Night: A chance of rain and snow showers before 10pm, then a chance of rain showers. Mostly cloudy, with a low around 35. Windy, with a south southeast wind 14 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Wednesday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 66. Windy, with a south wind 22 to 28 mph, with gusts as high as 38 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 before 1am, then a chance of showers. Mostly cloudy, with a low around 45. Breezy. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: A 40 percent chance of showers. Partly sunny, with a high near 61.

Thursday Night: A 40 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 39.

Friday: Mostly sunny, with a high near 59.

Friday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 42.

Saturday: A 50 percent chance of showers. Mostly cloudy, with a high near 61.

Saturday Night: Showers likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

Sunday: Showers likely. Mostly cloudy, with a high near 73. Breezy. Chance of precipitation is 70%.

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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 are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds