Forecast Details for Palatine, IL

Recent Locations: Palatine, IL  
Tonight: Partly cloudy, with a low around 41. East southeast wind 5 to 10 mph.
Friday: Showers after 1pm. High near 60. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Temperature rising to around 62 by 2am. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 40 mph.
Saturday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Breezy, with a south southwest wind around 20 mph, with gusts as high as 30 mph.
Sunday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 77. Breezy. Chance of precipitation is 60%.
Sunday Night: Showers and thunderstorms. Low around 63. Breezy. Chance of precipitation is 80%.
Monday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 73. Breezy.
Monday Night: Partly cloudy, with a low around 52.
Tuesday: Sunny, with a high near 74.
Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 74.
Wednesday Night: Mostly clear, with a low around 50.
Thursday: Mostly sunny, with a high near 65.

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Current U.S. National Radar--Current

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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