Recent National Weather Service forecasts and ensemble model runs for May 22 point to daytime highs in the mid-60s Fahrenheit across San Francisco, driven by a weakening marine layer and warmer offshore flow that has reduced coastal fog coverage over the past 48 hours. These conditions align with climatological norms for late May, when average highs near 64°F, yet recent observations show slightly above-normal temperatures persisting from mid-month patterns. Trader emphasis on the 66°F-or-higher outcome reflects model consensus favoring modest warming before any evening marine intrusion, while lower bins remain discounted absent stronger onshore winds or persistent stratus. Updated guidance from NOAA is expected later today and could refine land-sea breeze timing ahead of resolution.