There was something wrong for sure because in normal operation your temp gauge should not increase this way. Though the car did not overheat, it does sound like it was getting out of the normal operational temp. Even if it did not raise above the 3/4 mark.
Were you driving uphill when this happened?
Have you had any issues with coolant leaks/loss?
Did you change coolant lately?
How is the coolant level in the Expansion tank (overflow)?
This could be something as small as some air in the coolant system, low coolant, or could be the start of a Head Gasket issue where air is being introduced and caused the coolant to expand over (Air replacing coolant), thus causing the temp to jump up a bit.