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Sunday
Today
Extreme
Monday
Tomorrow
High
Tuesday
Jul 8
Moderate
Wednesday
Jul 9
High
Thursday
Jul 10
High
Malaria
Zika
Dengue
Yellow Fever
Chikungunya
West Nile Fever
Mosquitoes in Sierra Nevada can transmit diseases like Dengue fever and Zika virus, though cases are relatively rare within the park itself.
Use insect repellents, wear long sleeves and pants, and avoid outdoor activities during dawn and dusk when mosquitoes are most active.