The best time to go to Fort Peck is during the late spring, summer, and early fall months, specifically from May through September.During these months, the weather is generally warm and pleasant, making it ideal for outdoor activities around Fort Peck Lake and the Missouri River. You'll find temperatures conducive to boating, fishing, and exploring the natural surroundings. The longer daylight hours also provide more opportunity for enjoying the area.Families often find July and August particularly good for a visit. The water temperatures are at their warmest, superb for swimming and water sports on the lake. Many local events and recreational programs are also scheduled during the peak summer season, offering additional entertainment for all ages.For those interested in fishing, May, June, and September offer prime conditions. The fish are often more active during these shoulder seasons, and the weather is still very agreeable for spending extended time on the water.