What is Today's Weather? Read our latest blog It's raining, it's pouring Being prepared for severe and hazardous weather is essential for keeping you and your family safe. By staying informed on the weather in your area, you can always be prepared for what is to come. What to Do When the Sirens Blow How to Read a Weather Map What Doppler Radar Tell Us Learn About These Weather Phenomena Lightning Lightning is an electrical discharge through the atmosphere. Hail Hailstones grow by colliding with supercooled water drops. Tornado Illinois averages around 54 tornadoes per year. Snow Snow comes in many sizes and an infinite number of shapes. Wind Wind is created by changes in air pressure. Downburst Downbursts may or may not contain precipitation.