how to get the temperature at a specific point through interpolation

I have 3 vectors latitude longitude and temperature.i.e the temperature is at the respective latitudes and longitudes.Now i want to find out the temperature at a specific latitude and longitude not in the original set through interpolation.

P.S. the data varies randomly.i.e it is not monotonously inc or dec.

Answer 1

[Walter Roberson]

See TriScatteredInterp

[Charles David]

yes TriScatteredInterp is much better than griddata