Forecast Details for North Chicago, IL

Recent Locations: King City, CA Bradley Beach, NJ North Chicago, IL

Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 56. East northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

Tuesday: Patchy fog before 9am. Otherwise, sunny, with a high near 77. Calm wind becoming east around 5 mph in the afternoon. Winds could gust as high as 10 mph.

Tuesday Night: Partly cloudy, with a low around 62. Southeast wind around 5 mph becoming calm. Winds could gust as high as 10 mph.

Wednesday: A slight chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1pm. Increasing clouds, with a high near 75. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

Wednesday Night: Rain likely and possibly a thunderstorm before 1am, then a slight chance of rain. Mostly cloudy, with a low around 48. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

Thursday: Mostly sunny, with a high near 64.

Thursday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 53.

Friday: A chance of rain before 1pm. Partly sunny, with a high near 66.

Friday Night: Mostly clear, with a low around 49.

Saturday: Sunny, with a high near 66.

Saturday Night: Partly cloudy, with a low around 49.

Sunday: Sunny, with a high near 65.

Sunday Night: Mostly clear, with a low around 52.

Monday: Mostly sunny, with a high near 69.

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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

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

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 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