Forecast Details for Lafayette, CO

Recent Locations: Lafayette, CO  
Tonight: A 10 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 41. South wind 6 to 13 mph becoming west northwest after midnight. Winds could gust as high as 21 mph.
Sunday: A 10 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 78. Breezy, with a light and variable wind becoming south 16 to 21 mph in the morning. Winds could gust as high as 33 mph.
Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers after midnight. Mostly cloudy, with a low around 47. Breezy, with a south wind 14 to 23 mph becoming west southwest after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 20%.
Monday: A slight chance of showers before noon, then a slight chance of showers and thunderstorms between noon and 3pm, then a slight chance of showers after 3pm. Partly sunny, with a high near 61. Windy, with a west wind 24 to 34 mph, with gusts as high as 50 mph. Chance of precipitation is 20%.
Monday Night: A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 41. Windy, with a west southwest wind 23 to 28 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 41 mph.
Tuesday: A slight chance of rain and snow showers before 7am, then a slight chance of rain showers. Some thunder is also possible. Mostly sunny, with a high near 61. Windy. Chance of precipitation is 20%.
Tuesday Night: Partly cloudy, with a low around 36. Breezy.
Wednesday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60. Breezy.
Wednesday Night: A slight chance of showers. Mostly cloudy, with a low around 36. Breezy.
Thursday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 58.
Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 40.
Friday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 56.
Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 40.
Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 63.

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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