Big Horn Lake, Gallatin County, Montana     User input for Big Horn Lake, Gallatin County, Montana: Be the first to submit input for Big Horn Lake. Help improve this web site with your great input. Submit Input: Your Name: Write or Paste Input here: Upload picture:      Review Guidelines        The warmest time of the year brings highs in the 80's to Big Horn Lake, and through summer nights temperatures are in the 70's. Daytime highs during the winter are in the 80's with temperatures at Big Horn Lake dipping down into the 70's during winter nights. A good deal of rainfall falls at Big Horn Lake; September is when you get the most rain here, and the driest month of the year is May.           Current weather conditions at Big Horn Lake, Gallatin County, Montana Local climate location: 0 miles away   Coordinates: Latitude: 0 Longitude: 0 Montana Lakes Complete list of all lakes in Montana Gallatin County Lakes Complete list of all lakes in Gallatin County Books about Big Horn Lake List of books available on Amazon.com about Big Horn Lake, Gallatin County, Montana. Outdoors Recreation Near Fajardo, Puerto Rico Very comprehensive list of a variety of outdoors recreation in the vicinity of Fajardo, Puerto Rico, the metro area neareast to Big Horn Lake. Find info on campgrounds, hiking trails, ski resorts, lakes, beaches, parks, whitewater and more. Montana Outdoors Index This is a very comprehensive index of outdoors activities in the great state of Montana.     These outdoors activities are available near Big Horn Lake.