Forecast Details for Saint Olaf, IA

Recent Locations: Twisp, WA Circleville, KS Saint Olaf, IA

Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. Some of the storms could be severe. High near 70. Southwest wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight: Showers and thunderstorms likely, mainly before 8pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 52. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Thursday: A 30 percent chance of showers and thunderstorms, mainly between 7am and 1pm. Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 71. Light and variable wind becoming north around 6 mph in the morning.

Thursday Night: Mostly clear, with a low around 53. South wind around 6 mph.

Friday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. Breezy, with a south wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 37. South wind around 14 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday: A 30 percent chance of showers. Partly sunny, with a high near 46. Breezy, with a northwest wind 14 to 20 mph, with gusts as high as 28 mph.

Saturday Night: Partly cloudy, with a low around 29. Breezy, with a west wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 29 mph.

Sunday: Sunny, with a high near 50. Northwest wind 9 to 14 mph.

Sunday Night: Mostly clear, with a low around 31. Northwest wind 5 to 8 mph becoming south after midnight.

Monday: Sunny, with a high near 62. South wind 6 to 14 mph.

Monday Night: Partly cloudy, with a low around 46. South wind around 11 mph, with gusts as high as 20 mph.

Tuesday: Sunny, with a high near 69. West wind 10 to 14 mph, with gusts as high as 22 mph.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

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