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Hourly Forecast Detailed. 1  0am:The Snowflake, AZ forecast for Apr 12 is 45 degrees and Cloudy. There is 22 percentage chance of rain and 8 mph winds from the Southwest. 2  3am:The Snowflake, AZ forecast for Apr 12 is 41 degrees and Clear. There is 32 percentage chance of rain and 5 mph winds from the South-Southwest.
Snowflakes come from clouds, which are really just big clusters of water vapor. This water vapor scatters and forms ice crystals or rain in the clouds, depending on the temperature. The temperature must be below zero degrees Celsius (32 degrees F) for the water to turn into ice crystals.