Forecast Details for Seymour, IL

Recent Locations: Magnolia, NJ Madison, NH Seymour, IL

Current Alerts for Seymour, IL: Wind Advisory

Today: Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 5pm, then showers and thunderstorms likely after 5pm. High near 73. Windy, with a south wind 17 to 22 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 48 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 57. Breezy, with a south wind 23 to 28 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Friday: Showers likely and possibly a thunderstorm, mainly after 1pm. Mostly cloudy, with a high near 77. West southwest wind 6 to 14 mph becoming south in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night: Showers and possibly a thunderstorm. Low around 59. South wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 63. Breezy, with a west wind 15 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 35. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 25 mph.

Sunday: Mostly sunny, with a high near 52. West northwest wind 16 to 18 mph, with gusts as high as 25 mph.

Sunday Night: Mostly clear, with a low around 35.

Monday: Sunny, with a high near 59.

Monday Night: Partly cloudy, with a low around 32.

Tuesday: Mostly sunny, with a high near 54.

Tuesday Night: Partly cloudy, with a low around 34.

Wednesday: Mostly sunny, with a high near 65. Breezy.

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Current U.S. National Radar--Current

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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)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

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

Weather Topic: What is Evaporation?

Home - Education - Precipitation - Evaporation

Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog