Rubbing alcohol gets warm after diluting with water
Ethanol does the same. It is the consequence of deviation from the Raoult law.

The other consequences are existence of azeotropes ( affects distillation ) and mixing volume deviations. If you mix 1 L of ethanol and 1 L of water, it warms up. When it cools down back, its total volume is not 2 L, but about 1.9 L. 

It is closely related to total energy of inter-molecular bonds in pure solvents and in their mixture.