When travelling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Exeter is roughly similar to Midland. You can assume this to be the case over the next 5 days.
With an average temperature of 35 °C, peak weather can be found in June. As a traveller, expect to see changes in flight prices during that period. The temperatures in Midland are hotter than in Exeter.