Weather report 18 October 2026, 07:00

In San Francisco it is much cooler after the warm weekend: temperatures climb from around 14 °C in the morning to 18 °C in the early afternoon, then fall to about 12 °C in the evening. No rain is expected today, and it stays dry until midnight. The westerly wind strengthens from the afternoon, with gusts up to 44 km/h; this will be noticeable on exposed bridges and along the coast.

The night stays dry but windy, with temperatures dropping to around 12 °C. The westerly wind eases only slowly after midnight.

Monday stays cool with a maximum of 16 °C and is mostly cloudy. No significant rain is forecast, and the westerly wind remains noticeable with gusts up to 41 km/h.

Tuesday turns milder at 19 °C and largely dry. Rain is expected on Wednesday; the current run brings around 10 mm, while other models suggest much less, and Thursday should turn dry again. The weekend shows a milder but still uncertain tendency, with 23–24 °C.

The model history shows a short warm spell: Friday reached 30 °C and Saturday 28 °C. There is no evidence of a multi-day run of at least 30 °C, as Saturday already fell below that mark. The drop forecast for today to 18 °C therefore marks the end of that warmth rather than the start of a new hot period.

The wind comes from west to south-west and reaches up to 29 km/h in the afternoon and evening, with gusts to 44 km/h. Expect strong gusts on exposed bridges and along the coast; loose outdoor items should be secured.