Idaho Falls
SpringPeak season ~69°F highs
Things to do in Idaho Falls in May
May is one of the best months to visit Idaho Falls, with average highs around 69°F. Blooming parks and mild days make it easy to pack in sights.
Best picks for May
What's famous here, weighted toward what shines in May.
Holidays in May 2027
- Memorial Day · Mon, May 31
Expect busier roads and pricier stays around these dates. See long weekends.
Also great in May in Idaho
Idaho Falls in May: quick answers
Is May a good time to visit Idaho Falls?
May is one of the best months to visit Idaho Falls, with average highs around 69°F. Blooming parks and mild days make it easy to pack in sights.
What is the weather like in Idaho Falls in May?
Average daytime highs are around 69°F, compared with 90°F in the warmest month. Check the forecast a week out; our planner favors indoor stops on rainy days.
What are the best things to do in Idaho Falls in May?
Top picks for May: Yellowstone National Park, Experimental Breeder Reactor I, Targhee National Forest, Bottolfsen Park, Eighteenmile Wilderness Study Area.
