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Sunday
Today
High
Monday
Tomorrow
High
Tuesday
Jun 17
Extreme
Wednesday
Jun 18
Extreme
Thursday
Jun 19
Extreme
Malaria
Zika
Dengue
Yellow Fever
Chikungunya
West Nile Fever
The most common mosquito-borne diseases in San Mateo are West Nile virus and occasionally St. Louis encephalitis, though cases are relatively rare.
To protect yourself, eliminate standing water, use insect repellent, wear protective clothing during dawn and dusk, and keep window screens intact.