Forecast Details for Rio, IL

Recent Locations: Elverta, CA Omaha, NE Rio, IL

Overnight: A 50 percent chance of showers. Cloudy, with a steady temperature around 47. East northeast wind around 14 mph, with gusts as high as 25 mph.

Wednesday: A 50 percent chance of showers, mainly after 1pm. Cloudy, with a high near 50. East northeast wind around 17 mph, with gusts as high as 28 mph.

Wednesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11pm. Low around 43. East wind 14 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Thursday: Showers and possibly a thunderstorm. High near 73. Breezy, with a south wind 16 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night: A 50 percent chance of showers before 1am. Partly cloudy, with a low around 47. Breezy, with a south southwest wind 17 to 22 mph becoming west 6 to 11 mph after midnight. Winds could gust as high as 34 mph.

Friday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. East northeast wind 5 to 14 mph becoming south in the afternoon. Winds could gust as high as 22 mph.

Friday Night: Showers and possibly a thunderstorm. Low around 47. South southeast wind 11 to 14 mph becoming west southwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday: A 50 percent chance of showers. Mostly cloudy, with a high near 55. Breezy.

Saturday Night: Mostly cloudy, with a low around 33. Breezy.

Sunday: Mostly sunny, with a high near 52. Breezy.

Sunday Night: Mostly clear, with a low around 33.

Monday: Mostly sunny, with a high near 60.

Monday Night: Partly cloudy, with a low around 35.

Tuesday: Mostly sunny, with a high near 54.

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National Weather Forecast--Current

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North America Water Vapor (Moisture)

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Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle