Forecast Details for Graettinger, IA

Recent Locations: Norvelt, PA Stoy, IL Graettinger, IA

This Afternoon: Showers likely, mainly before 3pm. Cloudy, with a high near 38. Breezy, with a north wind around 16 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Cloudy, with a low around 29. North wind 7 to 14 mph, with gusts as high as 21 mph.

Friday: A chance of snow showers between 9am and 10am, then rain showers. Some thunder is also possible. High near 44. East northeast wind 10 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Friday Night: Rain showers likely before 4am, then a slight chance of snow showers. Some thunder is also possible. Cloudy, with a low around 30. Blustery, with a north northeast wind 13 to 18 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Saturday: A chance of snow showers before 1pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 42. Windy, with a west northwest wind 20 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Saturday Night: A 30 percent chance of showers before 7pm. Mostly cloudy, with a low around 27. Windy.

Sunday: Sunny, with a high near 53. Breezy.

Sunday Night: Partly cloudy, with a low around 29. Blustery.

Monday: Mostly sunny, with a high near 45. Breezy.

Monday Night: Partly cloudy, with a low around 21. Blustery.

Tuesday: Mostly sunny, with a high near 46. Breezy.

Tuesday Night: Mostly cloudy, with a low around 36. Windy.

Wednesday: Mostly sunny, with a high near 68. Windy.

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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 Contrails?

Home - Education - Cloud Types - Contrails

Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle