If you mean coolant temp, just use any OBD based phone app such as Torque Pro.

 

Thanks for the reply. Yep, I mean the coolant temp, in all my previous cars, there's always been a gauge in the dashboard. In the past it helped me identify a leak in the coolant circuit.
I read in the manual that there's a light in the dashboard that turns on when the temp is high, so I'll assume there is no other indicator

 

There's no other temperature gauge. There's a blue light that comes on when the coolant temp is low. It goes out when coolant is up to temp. I don't know what it does if there's overheating.

 

I don't know what it does if there's overheating.

There are a couple different coolant warnings displayed-

 

I installed a Scan Gauge. It supplies any number of gauge functions, including engine water temperature if desired.

It also will display problem codes that can pop up when things go awry.