  We study second order gravitational effects of local inhomogeneities on the
cosmic microwave background radiation in flat universes with matter and a
cosmological constant $\Lambda$. We find that the general relativistic
correction to the Newtonian approximation is negligible at second order
provided that the size of the inhomogeneous region is sufficiently smaller than
the horizon scale. For a spherically symmetric top-hat type quasi-linear
perturbation, the first order temperature fluctuation corresponding to the
linear integrated Sachs-Wolfe (ISW) effect is enhanced(suppressed) by the
second order one for a compensated void(lump). As a function of redshift of the
local inhomogeneity, the second order temperature fluctuations due to evolution
of the gravitational potential have a peak before the matter-$\Lambda$ equality
epoch for a fixed comoving size and a density contrast. The second order
gravitational effects from local quasi-linear inhomogeneities at a redshift z~1
may significantly affect the cosmic microwave background.
