Forecast Details for Naperville, IL

Recent Locations: McAllen, TX Orange, CA Naperville, IL

Today: Scattered snow showers between 9am and 3pm. Cloudy, with a high near 32. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

Tonight: Freezing rain and sleet likely before 4am, then snow showers likely, possibly mixed with freezing rain and sleet. Mostly cloudy, with a low around 29. South southwest wind around 10 mph becoming west after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%. Little or no ice accumulation expected. Little or no snow and sleet accumulation expected.

Friday: Freezing rain and sleet likely, possibly mixed with snow showers before 9am, then a slight chance of snow showers after noon. Mostly cloudy, with a high near 37. Breezy, with a north northwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. Little or no ice accumulation expected. New snow and sleet accumulation of less than a half inch possible.

Friday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 10. Wind chill values as low as -1. North wind 10 to 15 mph, with gusts as high as 30 mph.

Saturday: Mostly sunny, with a high near 25. North wind around 5 mph becoming calm.

Saturday Night: Cloudy, with a low around 18.

Sunday: Mostly cloudy, with a high near 35.

Sunday Night: Partly cloudy, with a low around 23.

Monday: Mostly sunny, with a high near 46.

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

Tuesday: Mostly sunny, with a high near 45.

Tuesday Night: A chance of rain. Mostly cloudy, with a low around 32.

Wednesday: A chance of rain. Cloudy, with a high near 39.

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North America Water Vapor (Moisture)

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Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

Next Topic: Altostratus Clouds

Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds