Friday, July 4. An extreme heat warning is in effect for parts of the state today, and heat indexes could reach the triple digits. We'll break down your holiday weekend forecast. Then, are you still making plans for your Independence Day celebrations? We'll tell you about a few exciting events happening, and where you can go hang out this evening. Plus, if you are spending time outside tonight, use some deet! The Metro Mosquito Control says the West Nile Virus has been discovered in Minnesota. We'll tell you what spots we know about so far. Join Johnny Kahner for this episode of 4 Things to Know.

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