The mercury is climbing as a dome of hot air expands into the central part of the country. Despite the temperatures near 90 degrees this coming week, it pales in comparison to last year when the hottest temperature during the month of June hit 103 degrees. Rainfall also stayed below 3" during that time a year ago. This year is much different. 4.37" of rain has already fallen this month with another couple inches possible by the end of June. The best chance of rain will arrive by mid to late week this coming week.