 Grand Forks forecast also looking breezy and cool tomorrow. Not much sun till the end of the day. Beautiful day on Sunday. Rain likely on Monday. And then again, we'll have to watch for showers here and there throughout the week. But late week next week, it is looking sunnier and warmer. All right. Thank you, John. If you're doing a lot of physical activity, do you reach for a bottle of water or a sports drink? Up next, a sports medicine specialist explains when you might want those extra electrolytes and when plain water is best.