Forecast Details for Green Valley, IL

Recent Locations: Green Valley, IL

Overnight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 54. South southwest wind 14 to 16 mph, with gusts as high as 29 mph.

Thursday: A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 74. West southwest wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 51. East wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday: Showers, mainly before 1pm. High near 62. West southwest wind 7 to 9 mph becoming north in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Friday Night: Partly cloudy, with a low around 41. East wind around 6 mph.

Saturday: Partly sunny, with a high near 64. East wind 6 to 9 mph, with gusts as high as 16 mph.

Saturday Night: Mostly cloudy, with a low around 57. Southeast wind 7 to 10 mph, with gusts as high as 22 mph.

Sunday: A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 76.

Sunday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.

Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65.

Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79.

Tuesday Night: Showers likely. Mostly cloudy, with a low around 49.

Wednesday: A chance of showers. Partly sunny, with a high near 63.

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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 Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds

Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation