In the scorching heat, it's important to drink lots of water and other beverages to keep hydrated. Vigorous exercise in the middle of the day is not recommended.
Many Sherman Oaks residents were out early to get their exercise in before the sun reached its peak.
Not everyone is complaining about the heat.
"I'm managing the late-summer heat getting out in the sunshine as much as possible and out of the dark office and inside my kitchen, and I'm swimming as much as I can," said Margaret England, a swimmer taking advantage of the sun in Sherman Oaks.
"If you're not finished by 8 or 8:30, it's already 80 degrees, and sometimes at 9 o'clock in the morning, it's 90 degrees. So start early, do your workout and you're finished for the day," advised Brian Williams, who was playing basketball Saturday morning in Sherman Oaks.