NPS Photo / Lauren Reid Weather at Montezuma Castle National Monument can vary greatly with the time of year. Summer days in central Arizona can be extremely hot. From May into September, average daytime temperatures range from 95°F (35°C) to 110°F (42°C) with shade offering little relief. Nighttime temperatures are cooler and often around 70°F (21°C). Humidity is usually low but is higher near water sources like Beaver Creek. From July through September, heavy rainstorms called monsoons are common in the afternoons. These storms bring much-needed rain as well as lightning and flooding. Park trails are closed for 30 minutes following any lightning strikes five miles or less from the park. Flash floods can occur with very little warning and follow heavy upstream rain. Winter highs at the park average around 55°F (13°C) but may be colder. Lows at night may be in the teens (-10°C). Snow is relatively rare but does occur since the park is located at about 3500 feet (1066 m). Learn how to safely enjoy your visit to Montezuma Castle or Montezuma Well.Loading weather forecast... |
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Last updated: September 28, 2025