Forecast Details for Geff, IL

Recent Locations: Bergman, AR Murtaugh, ID Geff, IL

Today: Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 73. West wind around 8 mph becoming north in the afternoon. Chance of precipitation is 90%.

Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 63. East wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 40%.

Thursday: A chance of showers between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 79. Breezy, with a south wind 14 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.

Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 63. South southwest wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.

Friday: Showers and possibly a thunderstorm. High near 80. South southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

Saturday: Showers and possibly a thunderstorm. High near 68. South southwest wind 11 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%.

Saturday Night: A chance of showers, mainly before 1am. Mostly cloudy, with a low around 39. West northwest wind 11 to 13 mph, with gusts as high as 21 mph.

Sunday: Sunny, with a high near 55. Northwest wind 10 to 14 mph, with gusts as high as 21 mph.

Sunday Night: Mostly clear, with a low around 34. North northwest wind 5 to 9 mph becoming calm after midnight.

Monday: Sunny, with a high near 62. Calm wind becoming south around 6 mph in the morning.

Monday Night: Partly cloudy, with a low around 40. Light and variable wind becoming west southwest around 5 mph after midnight.

Tuesday: Sunny, with a high near 60. North wind 6 to 8 mph.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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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)

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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