Most area schools leave that decision up to the administration.
That means if the weather improves during the day, and it's safe for the visiting team to travel, the game will likely go on as scheduled. What it looks like at 6 or 7 in the morning can sometimes be totally different than what it looks like at midday. The Northwest Conference once had a rule that stipulated if school was closed for the day because of weather that no afterschool events could be held that night. Some of the league schools still abide by the old policy. But others don't.