Heat Advisory in Effect June 4 - 6
Published on June 03, 2024
The National Weather Service forecasts moderate heat this week, Tuesday, June 4 – Thursday, June 6. A heat advisory is issued in Santa Clara County for Wednesday, June 5.
In addition, the Bay Area Air Quality Management District issued an air quality advisory for the afternoon in response to the June 3 Redwood City structure fire. An air quality advisory continues through Thursday due to the heatwave.
This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Use these tips from the National Weather Service to stay safe.
- Drink plenty of water
- Limit outdoor activity to evenings
Never leave pets or children in a car, particularly on hot days

Hot Weather Impacts
Hot weather increases the risk of heat-related health complications such as heat stroke, heat exhaustion, dehydration, hyperthermia, and heat cramps. Those with limited access to cooling, the homeless, the elderly, and children are all at highest risk. Take extra precautions to ensure the safety of yourself and those around you.
Practice Hot Weather Safety
Keep cool and stay safe with these hot weather tips.
- Dress in lightweight, loose-fitting, light-colored clothing. Avoid dark colors like black that absorb sun rays.
- Wear a wide-brimmed, vented hat, or use an umbrella when outdoors.
- Drink plenty of water or sports drink, even if you don't feel thirsty. Avoid alcohol, caffeine, and lots of sugar as they speed up fluid loss.
- Avoid outdoor and strenuous activities between 10 a.m. and 4 p.m. Use a buddy system when working or exercising in excessive heat. Take frequent breaks if you must work outdoors.
- Use air conditioning and remain in cool places during the day. Find a cooling center if you don't have access to air conditioning at home, details below.
- Never leave people or pets in a closed, parked car.
- Check on your pets frequently and provide them with plenty of water.
- Minimize direct exposure to the sun. Sunburn reduces your body's ability to dissipate heat.
- Keep window coverings closed during the day to block the sun's heat.
- Eat small meals and eat more often. Eat light, cool, easy-to-digest foods such as fruit or salads.
- Take a cool bath or shower if you feel yourself overheating. Use moist towels to cool down as needed.
- Check on vulnerable family, friends, and neighbors often.
Know Your Local Cooling Centers
Visit Palo Alto libraries which serve as Cooling Centers during normal business hours to support community health. Find a full list of Palo Alto libraries below.
Children’s Library: Located at 1278 Harriet St. Palo Alto CA 94301. Open Tuesday – Thursday, and Saturday from 10 a.m. to 6 p.m.
College Terrace Library: Located at 2300 Wellesley St. Palo Alto CA 94306. Open Tuesday - Saturday from 10 a.m. to 6 p.m.
Downtown Library: Located at 270 Forest Ave. Palo Alto CA 94301. Open Tuesday - Saturday from 10 a.m. to 6 p.m.
Mitchell Park Library: Located at 3700 Middlefield Rd Palo Alto CA 94303. Open Monday – Thursday from 10 a.m. to 9 p.m. and Friday, Saturday, and Sunday from 10 a.m. to 6 p.m.
Rinconada Library: Located at 1213 Newell Rd. Palo Alto CA 94303. Open Friday – Wednesday from 10 a.m. to 6 p.m. and Thursday from noon to 8 p.m.
Additional Safety Resources