Forecast Details for Irwin, ID

Recent Locations: Artesia, MS Buchanan, TN Irwin, ID

This Afternoon: Mostly sunny, with a high near 49. West southwest wind 6 to 8 mph.

Tonight: Increasing clouds, with a low around 31. West wind 5 to 8 mph becoming east after midnight.

Sunday: Rain and snow likely, becoming all rain after 10am. Some thunder is also possible. Snow level rising to 7200 feet in the afternoon. Mostly cloudy, with a high near 51. East wind 5 to 7 mph becoming west northwest in the afternoon. Chance of precipitation is 70%. Little or no snow accumulation expected.

Sunday Night: A 30 percent chance of rain before midnight. Snow level 7100 feet lowering to 5400 feet after midnight . Mostly cloudy, with a low around 29. West northwest wind around 7 mph becoming south southeast after midnight.

Monday: A slight chance of snow before noon, then a chance of rain and snow. Snow level rising to 5900 feet in the afternoon. Partly sunny, with a high near 49. South southeast wind 6 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Monday Night: A 40 percent chance of rain before midnight. Patchy fog after 5am. Snow level 6100 feet lowering to 5400 feet after midnight . Otherwise, mostly cloudy, with a low around 31.

Tuesday: Rain likely, possibly mixed with snow showers, becoming all rain after 3pm. Some thunder is also possible. Snow level rising to 6400 feet in the afternoon. Partly sunny, with a high near 52. Chance of precipitation is 60%. Little or no snow accumulation expected.

Tuesday Night: A 30 percent chance of rain before midnight. Snow level 6700 feet. Mostly cloudy, with a low around 34.

Wednesday: A chance of rain before noon, then a chance of showers and thunderstorms after noon. Snow level 6400 feet rising to 7200 feet in the afternoon. Partly sunny, with a high near 56. Chance of precipitation is 50%.

Wednesday Night: A 20 percent chance of rain before midnight. Snow level 7400 feet. Partly cloudy, with a low around 33.

Thursday: A 20 percent chance of showers and thunderstorms. Snow level 6800 feet rising to 7700 feet in the afternoon. Mostly sunny, with a high near 61.

Thursday Night: Mostly clear, with a low around 35.

Friday: A 20 percent chance of showers and thunderstorms. Snow level 7300 feet rising to 8300 feet in the afternoon. Sunny, with a high near 64.

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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

Weather Topic: What is Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow