Numeric comparisons?

The primary issue here is actually caused by the advanced options allowed by Decisions. Allow me to elaborate.

Temperature is an integer, but when formatted with additional details such as AllDecimals.NoSeparator, or Currency.TwoDecimals, or any other formatting variation, whats being passed out is a string using that integer as a base component. This is great for reporting, but bad for evaluations unless theres a real need for it.
The formatting makes it easy to manipulate the integer to look good on forms and reports, but since its just a string display of the integer, its providing string evaluations instead of number evaluations.
Removing the Default.AllDecimals.NoSeparator formatting from temperature will resolve this issue.
Just use the bold temperature variable when creating the rule and itll work like a charm!