Forecast Details for Alton, IA

Recent Locations: Black Canyon City, AZ Rocky Point, NY Alton, IA

Current Alerts for Alton, IA: Air Quality Alert

Overnight: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. South wind around 10 mph.

Sunday: A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 1pm. Areas of smoke between 7am and 4pm. Mostly cloudy, with a high near 74. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

Sunday Night: A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 59. South southeast wind 5 to 10 mph.

Monday: A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 77. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.

Monday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 60. South southeast wind 5 to 10 mph. Chance of precipitation is 10%.

Tuesday: Mostly sunny, with a high near 80. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.

Wednesday: Mostly sunny, with a high near 85.

Wednesday Night: Partly cloudy, with a low around 68.

Thursday: Mostly sunny, with a high near 88.

Thursday Night: Partly cloudy, with a low around 71.

Friday: Mostly sunny, with a high near 90.

Friday Night: Partly cloudy, with a low around 70.

Saturday: Mostly sunny, with a high near 88.

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 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