The tornado outlook (where 5% is significant) is not especially high today.
However, if you are at a football game this evening, hail and lightning could be threats. Below is the probability of hail 1" in diameter or larger. These forecasts are from the NWS's Storm Prediction Center.
This is the day with the best chance of tornadoes. If you live in the yellow (15%) area and, especially, the red (30%) areas you'll want to keep up on the weather, especially if thunderstorms approach.
Yesterday, I posted some thunderstorm and football safety rules. Here they are again in case you missed them.