Forecast Details for Irwin, IA

Recent Locations: Elgin, OR Crary, ND Irwin, IA

Tonight: Mostly clear, with a low around 53. Light and variable wind becoming south 5 to 7 mph after midnight.

Wednesday: Sunny, with a high near 82. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 26 mph.

Wednesday Night: Increasing clouds, with a low around 58. Breezy, with a south wind 17 to 20 mph, with gusts as high as 28 mph.

Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 74. Breezy, with a south wind 18 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 42. South wind 9 to 14 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

Friday: Sunny, with a high near 65. North northwest wind 10 to 13 mph, with gusts as high as 20 mph.

Friday Night: Mostly clear, with a low around 40. North wind 3 to 6 mph.

Saturday: A slight chance of showers after 1pm. Partly sunny, with a high near 64. Light north northeast wind becoming northeast 5 to 9 mph in the morning.

Saturday Night: A slight chance of showers. Mostly cloudy, with a low around 45. East wind 3 to 6 mph.

Sunday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 64. East southeast wind 8 to 17 mph, with gusts as high as 25 mph.

Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 47. East southeast wind 13 to 15 mph, with gusts as high as 23 mph.

Monday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 61. Breezy, with an east southeast wind 15 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph.

Monday Night: A chance of showers. Mostly cloudy, with a low around 39. Northwest wind 6 to 15 mph, with gusts as high as 22 mph.

Tuesday: Partly sunny, with a high near 61. Light northwest wind increasing to 5 to 10 mph in the morning.

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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)

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 Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds