Forecast Details for Granite City, IL

Recent Locations: Elkins, WV Temple, NH Granite City, IL

Tonight: Partly cloudy, with a low around 65. South wind 10 to 15 mph, with gusts as high as 24 mph.

Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 86. South wind 11 to 18 mph, with gusts as high as 29 mph.

Tuesday Night: A chance of showers and thunderstorms before 1am, then showers likely between 1am and 2am, then rain likely after 2am. Mostly cloudy, with a low around 61. South wind 6 to 10 mph. Chance of precipitation is 70%.

Wednesday: Rain, with thunderstorms also possible after 1pm. High near 75. East wind 6 to 10 mph becoming south in the afternoon. Chance of precipitation is 80%.

Wednesday Night: A chance of rain and thunderstorms before 1am, then rain likely between 1am and 4am, then rain likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 64. Southeast wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

Thursday: Rain and possibly a thunderstorm. High near 80. Breezy. Chance of precipitation is 80%.

Thursday Night: Rain and possibly a thunderstorm before 1am, then rain likely. Low around 60. Chance of precipitation is 80%.

Friday: A chance of rain, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.

Friday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.

Saturday: Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.

Saturday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 42.

Sunday: A 20 percent chance of rain. Mostly sunny, with a high near 60.

Sunday Night: Mostly clear, with a low around 39.

Monday: Sunny, with a high near 65.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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 Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds

Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails