Taking into account the local weather in Romoos is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually July and August with an average temp of 60°F, while the coldest months are January and February with an average of 33°F. The rainiest months in Romoos are June, May, July, and August, with each month seeing an average of 7 inches of rainfall.