**Forecast models point to typical mid-June marine-layer conditions moderating San Francisco’s high temperature near 66–70°F.** Persistent onshore flow from the cool Pacific, reinforced by the California Current, maintains a shallow marine layer that fosters morning fog and stratus, limiting solar heating and keeping afternoon maxima in the upper 60s for most downtown and coastal zones. Minor differences among leading bins (68–69°F at 19%, 66–67°F at 13%, 70–71°F at 11.5%) hinge on the precise depth and timing of any afternoon clearing or slight wind shift, which can add or subtract 2–3°F. Historical climatology shows mid-June averages around 68–70°F, so traders are pricing in near-normal variability rather than anomalous warmth or deeper gloom. Updated National Weather Service and mesoscale guidance through the evening of June 14 will refine the exact peak.