MARSHALL - A heat advisory is hitting marshall this week, with potential thunderstorms coming into the night keeping the temperature humid. According to the National Weather service, Lyon County is under a heat advisory on Monday from 1 to 9 p.m. and a hazardous weather outlook until Sunday. Temperatures hit their peak on Monday at 94 degrees. However, according to Andrew Kalin with the National Weather Service, the summer-like heat is expected to continue for the rest of the week. With highs into the 90s on Tuesday, Wednesday and Thursday. Beyond just the heat, the days are also ...