Custom Search     Rock Lake Reservoir     A great place to camp here at Rock Lake Reservoir is Eunice Municipal Recreation Area. Dry warm beds await you at Double Eagle Hotel And Casino. Summer at Rock Lake Reservoir arrives with high temperatures in the 90's, and during the night it cools down to the 60's. The winter brings highs down to the 50's, and winter nights come with lows in the 20's to Rock Lake Reservoir. At Rock Lake Reservoir you don’t see much precipitation. Of all the months in a year September is the one with the most rain while January is the month with the least amount of precipitation. Be the first to submit input for Rock Lake Reservoir. If you have info on Rock Lake Reservoir, Lea County, New Mexico please submit it here to improve this web site.          Map Detailed Map Weather Local weather forecast