Forecast Details for Naperville, IL

Recent Locations: Irving, TX Independence, MO Naperville, IL

Tonight: A 20 percent chance of showers after 4am. Cloudy, with a temperature rising to around 39 by 4am. East southeast wind around 15 mph, with gusts as high as 25 mph.

Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11am. High near 58. Breezy, with a south wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night: Rain showers and sleet, possibly mixed with snow before midnight, then snow, possibly mixed with sleet between midnight and 1am, then snow after 1am. Patchy blowing snow after 2am. Low around 22. Windy, with a south southwest wind 25 to 30 mph becoming north northwest in the evening. Winds could gust as high as 45 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 2 inches possible.

Monday: Snow, mainly before 1pm. Patchy blowing snow. High near 24. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Monday Night: Mostly cloudy, with a low around 10. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 30 mph.

Tuesday: Mostly sunny, with a high near 25.

Tuesday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 70%.

Wednesday: Partly sunny, with a high near 45.

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

Thursday: Mostly sunny, with a high near 56.

Thursday Night: Mostly cloudy, with a low around 37.

Friday: Partly sunny, with a high near 59.

Friday Night: Mostly cloudy, with a low around 39.

Saturday: Partly sunny, with a high near 61.

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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)

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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