I just tried this with the OH-58D. Hot start with 90% gas at sea-level. And did a refuel to 100% see if there was any thing that changed.
Note Mission editor weight indicated 661 lbs for all temps at 90% load. 736 lbs for 100%.
In the mission these were the indicated numbers via the panel
15c
Start: 661lbs indicated
Refuel: 730lbs indicated
-12c
Start: 661lbs indicated
Refuel: 730lbs indicated
50c
Start: 661 lbs indicated
Refuel: 730 lbs indicated
It may be module dependent.