Forecast Details for Saint Olaf, IA

Recent Locations: Hidden Valley Lake, CA Lisbon, NY Saint Olaf, IA

Current Alerts for Saint Olaf, IA: Flood Warning

Today: Mostly sunny, with a high near 52. Northwest wind 11 to 15 mph, with gusts as high as 23 mph.

Tonight: A 50 percent chance of showers, mainly before 10pm. Mostly cloudy, with a low around 32. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday: Mostly cloudy, then gradually becoming sunny, with a high near 44. Breezy, with a northwest wind 10 to 16 mph, with gusts as high as 24 mph.

Monday Night: Mostly clear, with a low around 20. North wind 8 to 13 mph becoming light northeast after midnight.

Tuesday: Mostly sunny, with a high near 42. Calm wind becoming south 5 to 9 mph in the morning.

Tuesday Night: Rain likely, possibly mixed with snow showers, becoming all rain after 4am. Mostly cloudy, with a low around 32. Southeast wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 64. Breezy, with a south wind 16 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 50%.

Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 40. Breezy, with a southwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 60%.

Thursday: A 40 percent chance of showers. Mostly sunny, with a high near 56. Northwest wind 5 to 7 mph.

Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 36. Northeast wind 3 to 5 mph.

Friday: A 40 percent chance of showers. Partly sunny, with a high near 55. Northeast wind around 6 mph.

Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 38. Northeast wind around 7 mph.

Saturday: A 50 percent chance of showers. Partly sunny, with a high near 57. East wind 7 to 10 mph.

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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 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

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