Forecast Details for Arco, ID

Recent Locations: Driggs, ID Cocoa, FL Arco, ID

Today: Mostly sunny, with a high near 72. Breezy, with a south wind 6 to 16 mph increasing to 16 to 26 mph in the afternoon. Winds could gust as high as 34 mph.

Tonight: A slight chance of showers before 4am, then a chance of showers after 5am. Partly cloudy, with a low around 35. Breezy, with a south wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 30%.

Wednesday: Rain and snow showers before noon, then snow showers between noon and 3pm, then rain, possibly mixed with snow showers after 3pm. Some thunder is also possible. High near 49. Breezy, with a southwest wind 16 to 21 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Wednesday Night: Rain and snow showers likely, becoming all snow after 9pm. Cloudy, with a low around 28. Breezy, with a west southwest wind 20 to 25 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Thursday: A 50 percent chance of snow showers. Partly sunny, with a high near 50. West southwest wind 10 to 18 mph, with gusts as high as 25 mph. Little or no snow accumulation expected.

Thursday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.

Friday: A 40 percent chance of snow. Partly sunny, with a high near 44. Little or no snow accumulation expected.

Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 22.

Saturday: Mostly sunny, with a high near 48.

Saturday Night: Partly cloudy, with a low around 25.

Sunday: A slight chance of rain and snow. Mostly sunny, with a high near 50. Chance of precipitation is 20%.

Sunday Night: Mostly cloudy, with a low around 28.

Monday: Mostly sunny, with a high near 53.

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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 Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds

Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails