Forecast Details for Arco, ID

Recent Locations: Ida Grove, IA Calhoun, TN Arco, ID

Tonight: A 40 percent chance of snow, mainly before 4am. Cloudy, with a low around 31. Breezy, with a west northwest wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 37 mph. Little or no snow accumulation expected.

Thursday: A 40 percent chance of snow, mainly after 1pm. Mostly sunny, with a high near 52. Breezy, with a northwest wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph. Little or no snow accumulation expected.

Thursday Night: A 30 percent chance of snow, mainly before midnight. Partly cloudy, with a low around 25. Blustery, with a west northwest wind 17 to 22 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 32 mph. Little or no snow accumulation expected.

Friday: A 40 percent chance of snow. Partly sunny, with a high near 48. North northwest wind 6 to 14 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Little or no snow accumulation expected.

Friday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around 24. West wind 6 to 14 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.

Saturday: Sunny, with a high near 52.

Saturday Night: A slight chance of rain after midnight, mixing with snow after 3am. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.

Sunday: A chance of rain and snow before noon, then a chance of rain and snow showers. Some thunder is also possible. Partly sunny, with a high near 52. Chance of precipitation is 40%.

Sunday Night: A chance of rain and snow before midnight. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.

Monday: A chance of rain and snow after noon. Mostly sunny, with a high near 53. Chance of precipitation is 30%.

Monday Night: Partly cloudy, with a low around 31.

Tuesday: A 20 percent chance of rain. Mostly sunny, with a high near 56.

Tuesday Night: Mostly cloudy, with a low around 33.

Wednesday: A 20 percent chance of rain. Mostly sunny, with a high near 59.

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