Forecast Details for Karnak, IL

Recent Locations: Scalf, KY Holstein, IA Karnak, IL

Current Alerts for Karnak, IL: Severe Thunderstorm Watch

Today: Showers and thunderstorms likely, mainly before 1pm. Some of the storms could be severe. Mostly cloudy, with a high near 86. Breezy, with a south southeast wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 60%.

Tonight: Showers and thunderstorms, mainly before 3am. Low around 62. South southwest wind 5 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.

Tuesday: Showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 81. Light and variable wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 60%.

Tuesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 58. Light and variable wind becoming north northwest around 6 mph after midnight. Chance of precipitation is 100%.

Wednesday: A slight chance of showers and thunderstorms. Partly sunny, with a high near 70. North northwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Wednesday Night: Mostly clear, with a low around 46. North northwest wind 5 to 7 mph becoming calm after midnight.

Thursday: Mostly sunny, with a high near 69. Calm wind becoming north 5 to 7 mph in the morning.

Thursday Night: Partly cloudy, with a low around 48. Calm wind.

Friday: A slight chance of showers after 1pm. Partly sunny, with a high near 67. Calm wind becoming north 5 to 7 mph in the morning.

Friday Night: Mostly cloudy, with a low around 43. North wind around 5 mph becoming calm in the evening.

Saturday: Sunny, with a high near 67. Calm wind becoming north 5 to 8 mph in the morning.

Saturday Night: Mostly clear, with a low around 43. Light north northeast wind.

Sunday: Sunny, with a high near 72. Calm wind becoming west northwest 5 to 7 mph in the morning.

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