 Just make sure to avoid the hottest hours and have access to shade and fresh water. On really hot days, keep outdoor activities brief. Take plenty of cooling indoor breaks and watch for signs of overheating, like excessive panting or lethargy. When exploring outdoors, it's important to watch your pets closely and keep them leashed to limit their ability to get into things they shouldn't. If you notice vomiting, diarrhea, weakness, or trouble breathing, contact your veterinarian right away.