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We consider the effects of the non-local Ising-like "core spin" correlationson the order-parameter fluctuation contribution to the resistivity andthermodynamics of metals showing Ising-like order at finite temperature. Weemploy the well-known cluster-variation method, and present explicit results inthe pair approximation for short-range order. Our calculation generalizesearlier works, where such effects were considered in the mean-field(Ornstein-Zernicke) approximation. The mean-field (MF) transition temperatureT_{c}^{MF}, is corrected to O(1/d), and the effect of the Ising spinfluctuations on the $dc$ resistivity and magnetothermal responses is analyzedin detail. The method can be applied straightforwardly to lattices in arbitraryd, and, as an appealing feature, it reproduces the exact correlation length andT_{c}^{1d}=0 for the 1d Ising model. We apply our results for two interestingphysical cases: (i) the double-exchange model with J_{H}>>t, where thecore-spins can be approximated quite well by Ising spins, and (ii) a model ofband electrons coupled to a {\it localized} subsystem which undergoes a nematicordering transition coupled to an appropriate structural transition.

Effect of Short-Range Fluctuations on Thermodynamic and Resistive Properties: The case of Ising Order