Lemon Grove is a city located in San Diego County, California. The climate is classified as Mediterranean, with mild winters and warm summers. The average temperature is around 70 degrees Fahrenheit. Hydrology constituents include the Sweetwater River, which runs through the city and is home to various species of fish and birds. Outdoor recreation opportunities in Lemon Grove include hiking and biking on local trails, such as the Sweetwater Summit Regional Park Trail and the Lemon Grove Park Trail. The city also has several parks and playgrounds for families and children to enjoy. Overall, Lemon Grove offers a pleasant climate and opportunities to enjoy the outdoors.