Forecast Details for Walnut, IA

Recent Locations: Walnut, IA

Overnight: Cloudy, with a low around 31. Blustery, with a west northwest wind 15 to 18 mph, with gusts as high as 26 mph.

Saturday: Mostly cloudy, with a high near 46. Windy, with a west northwest wind 18 to 25 mph, with gusts as high as 33 mph.

Saturday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 27. Blustery, with a northwest wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 28 mph.

Sunday: Sunny, with a high near 59. West northwest wind 7 to 14 mph.

Sunday Night: Partly cloudy, with a low around 32. North wind around 9 mph.

Monday: A chance of rain showers before 10am, then a chance of rain and snow showers between 10am and 1pm, then a slight chance of rain showers after 1pm. Mostly cloudy, with a high near 45. North wind 8 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 40%.

Monday Night: A slight chance of rain and snow showers before 10pm, then a chance of snow showers. Mostly cloudy, with a low around 25. East wind around 11 mph, with gusts as high as 17 mph. Chance of precipitation is 50%.

Tuesday: A slight chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 45. Breezy, with an east southeast wind 11 to 18 mph, with gusts as high as 25 mph.

Tuesday Night: A chance of rain. Mostly cloudy, with a low around 35. Breezy, with a southeast wind 18 to 23 mph, with gusts as high as 29 mph.

Wednesday: A chance of rain, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 70. Windy, with a south wind 24 to 29 mph, with gusts as high as 37 mph.

Wednesday Night: A chance of rain and thunderstorms. Mostly cloudy, with a low around 43. Breezy, with a south wind 17 to 22 mph, with gusts as high as 29 mph.

Thursday: A chance of rain and thunderstorms. Mostly cloudy, with a high near 61. Breezy, with an east wind 16 to 21 mph, with gusts as high as 26 mph.

Thursday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 41. East wind 14 to 16 mph, with gusts as high as 22 mph.

Friday: Rain and possibly a thunderstorm. Mostly cloudy, with a high near 58. Breezy, with a south southeast wind 15 to 18 mph, with gusts as high as 25 mph.

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North America Water Vapor (Moisture)

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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

Weather Topic: What are Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds