Forecast Details for Missouri Valley, IA

Recent Locations: Norridgewock, ME Altadena, CA Missouri Valley, IA

Tonight: A 20 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 61. Breezy, with a south wind around 20 mph, with gusts as high as 32 mph.

Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 73. Breezy, with a south wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night: Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 45. South wind 7 to 10 mph becoming north northwest after midnight. Winds could gust 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.

Friday: Sunny, with a high near 64. North northwest wind around 11 mph, with gusts as high as 18 mph.

Friday Night: Mostly clear, with a low around 42. North wind 6 to 8 mph becoming east northeast after midnight.

Saturday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 63. East southeast wind 6 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 30%.

Saturday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 48. East wind 5 to 8 mph.

Sunday: Showers likely, then showers and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 65. East wind 9 to 16 mph, with gusts as high as 26 mph.

Sunday Night: Showers and possibly a thunderstorm. Cloudy, with a low around 48. East southeast wind 11 to 16 mph, with gusts as high as 25 mph.

Monday: A chance of showers. Mostly cloudy, with a high near 60. Breezy, with a northwest wind 13 to 23 mph, with gusts as high as 34 mph.

Monday Night: A slight chance of showers. Mostly cloudy, with a low around 39. Breezy, with a northwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 mph.

Tuesday: Partly sunny, with a high near 58. West northwest wind around 7 mph.

Tuesday Night: A slight chance of showers. Partly cloudy, with a low around 41. Northwest wind around 5 mph becoming calm in the evening.

Wednesday: A chance of showers. Mostly sunny, with a high near 61. Light north wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 16 mph.

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North America Water Vapor (Moisture)

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Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds

Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain