Short-term forecast models from the National Weather Service and private agencies currently project a high near 84°F in Dallas on May 18, with partly cloudy skies, light southerly winds, and a modest 30–40% chance of afternoon showers that could limit peak heating. Recent days have featured highs in the mid-80s under similar conditions, but slight model disagreements on cloud cover and boundary-layer moisture introduce uncertainty in whether temperatures will reach the upper 80s or low 90s. Trader sentiment clusters tightly around 88–91°F because historical May variability and the possibility of reduced precipitation allow for stronger surface heating than baseline guidance suggests, while probabilities drop sharply below 86°F given the warm advection already in place.