Atherton and Menlo Park police are reminding residents that all fireworks are illegal in every city in San Mateo County except Pacifica and San Bruno, which allow state-approved fireworks.
The Menlo Park Fire Protection District will be helping police enforce local firework restrictions during the July Fourth weekend.
In a July Fourth advisory, the Menlo Park Police Department reminds residents and visitors that fire risk is "extremely high" due to hotter temperatures and dry grass and brush.
Residents are urged to report the use of fireworks and discharging of firearms.
Police will also be on the lookout for impaired drivers over the holiday weekend. According to the Atherton Police Department, July Fourth is second only to New Year's as the most deadly holiday, due to impaired driving.