Recent National Weather Service guidance points to a coastal marine layer and strengthening sea breeze capping afternoon highs near 78°F at stations like LAX while downtown areas may reach the low-to-mid 80s, driving the 78–79°F bracket to 51.5% implied probability. This temperature gradient arises from cool, stable air advection off the Pacific that limits mixing and solar heating near the coast, consistent with typical late-summer patterns where onshore flow keeps maximums 5–10°F below inland values. Model consensus shows limited warming potential today absent a strong offshore wind shift, with traders assigning roughly 40% combined odds to the adjacent 76–77°F and 80–81°F ranges reflecting residual forecast spread. Updated observations and any evening marine-layer adjustments will refine these market-implied odds before resolution.