Forecast Details for Seward, IL

Recent Locations: Seward, IL  
Tonight: A slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 52. Northwest wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 40%.
Thursday: Showers likely and possibly a thunderstorm before 1pm, then showers likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 74. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night: Showers and possibly a thunderstorm. Low around 57. South wind around 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday: A chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 72. North wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Friday Night: Mostly clear, with a low around 47. Northeast wind 5 to 10 mph.
Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 72.
Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 49.
Sunday: Mostly sunny, with a high near 72.
Sunday Night: A chance of showers after 1am. Mostly cloudy, with a low around 51.
Monday: A chance of showers. Partly sunny, with a high near 75.
Monday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 60.
Tuesday: Showers and thunderstorms likely. Partly sunny, with a high near 77. Breezy.
Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Wednesday: A chance of showers. Mostly sunny, with a high near 72. Breezy.

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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds