Weather report 17 October 2026, 18:00

In San Francisco, the early evening is 23 °C with hardly any cloud and a moderate westerly wind. By 21:00, it will have cooled to around 15 °C.

The night stays clear and dry, with temperatures falling to about 12 °C; the wind eases for a time.

Sunday starts fresh at around 12 °C, reaches 19 °C near midday and cools to about 14 °C by late afternoon. No rain is forecast at any point during the day.

Monday stays cool at 17 °C and still gusty. The wind eases on Tuesday before rain arrives on Wednesday, with about 6.5 mm and a high near 20 °C. From Thursday it turns dry again, and by the following Saturday a mild warming to around 23 °C is signalled.

Friday reached 30.1 °C in the available weather data, while Saturday's daily figure is 28 °C; that is not a three-day heatwave. Sunday continues the cooling trend at 19 °C, before Wednesday brings the next clear change with rain.

On Sunday the wind is westerly; during the afternoon and early evening it reaches 25–29 km/h. The strongest gusts, up to 43 km/h, occur between 15:00 and 21:00; expect a strong crosswind on exposed stretches.