Tomato pollen is sterile when temps hit that high (day and night), tried growing them during summer on a sheltered balcony where it was about 45 Celsius day time and 30 at night and got about 99% blossom drop, no problem with vegative growth though and started fruiting again once autumn set in.
The Effect of Heat Stress on Tomato Pollen Characteristics is Associated with Changes in Carbohydrate Concentration in the Developing Anthers -- PRESSMAN et al. 90 (5): 631 -- Annals of Botany