In the summer, the most popular time to visit Zion, the temperature routinely hits 100 degrees. But that doesn’t tell the whole story of the weather in Zion, as it’s known for its wide range of temperatures, depending on the elevation and time of day. The spring and fall bring more moderate temperatures to Zion but expect cool mornings and evenings. In the winter, the high temperatures often reach 50 to 60 degrees, but it typically falls below freezing at night. Be sure to check the forecast whenever you visit so that you can plan for your trip.