Boulder, Colorado is boiling. With temperatures soaring into the 90s and beyond, this ongoing heat wave is putting residents and visitors at serious risk. Whether you’re hiking Mount Sanitas, relaxing near Boulder Creek, or walking across the CU Boulder campus, one thing is clear — dehydration is setting in fast.

In Boulder’s dry climate, most people don’t even realize they’re dehydrated until symptoms like fatigue, headache, and lightheadedness begin to hit.

Are You Already Dehydrated? Watch for These Signs

Even mild dehydration can impact your body and mind. Common symptoms include:

• Headaches or dizziness

• Muscle cramps or weakness

• Dry lips and mouth

• Dark-colored urine or infrequent urination

• Brain fog or irritability

If you’re outdoors and feeling off, hydration should be your first move.

Smart Hydration Tips for Boulder’s Dry Heat

Staying safe in this kind of weather means being proactive:

• Hydrate constantly – Sip water throughout the day, not just when you feel thirsty.

• Replenish electrolytes – Add lemon and a pinch of sea salt to your bottle, or grab coconut water or electrolyte packets.

• Snack on water-rich foods – Watermelon, strawberries, oranges, and cucumbers are summer MVPs.

• Avoid dehydrators – Alcohol, coffee, and energy drinks pull water from your system.

• Use a refillable bottle – Keep it on hand at all times, especially when heading outdoors.

High-Risk Heat Zones in Boulder

Certain spots in Boulder are more hazardous during heat waves:

• Chautauqua Trails – Scenic but fully exposed to sun

• CU Campus Walks – Long stretches of pavement amplify heat

• Boulder Reservoir – Great for a swim, but be mindful of sun reflection

• Flagstaff Mountain Trails – Intense elevation plus dry air = extra risk

• Wonderland Lake Path – No swimming, no shade, and easy to overheat

If you’re in any of these areas, double your hydration plan and take breaks often.

Wonderland Lake

Stay Safe, Boulder — This Heat is No Joke

According to the National Weather Service, extreme heat is among the top causes of weather-related fatalities in the U.S. And here in Colorado’s high altitude and dry air, it’s even more dangerous. The good news? Most heat-related illnesses are 100% preventable — if you stay alert and stay hydrated.

And for free streaming options while you stay cool inside, you can always check Pluto for a break from the sun.

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