**Forecast models and official guidance from the National Weather Service and private sources converge on a sunny Monday, August 24, with highs in the mid-to-upper 70s under building high pressure and northerly winds of 10–15 mph.** These conditions favor efficient daytime heating without the marine layer or clouds that suppressed temperatures on Sunday. Seattle’s climatological average high for the date is 75.8°F, and current runs show no thermal trough or offshore flow strong enough to push readings into the low 80s. Trader emphasis on the 78–79°F bin (41.5 % implied probability) alongside notable support for 76–77°F and 80–81°F reflects this narrow forecast range and typical uncertainty in exact maximum timing or microclimate differences between Sea-Tac and urban stations. With skies expected to remain clear through peak heating hours, the market-implied distribution closely tracks the consensus guidance issued in the past 24 hours.