Another scorching Dallas day is upon us, and frankly, you're better off on the treadmill if you're sensitive to bad air or high temps.
- Ozone Action Day: The Texas Commission on Environmental Quality (TCEQ) has declared an Ozone Action Day for the Dallas-Fort Worth area for Monday. This means atmospheric conditions are ripe for producing high levels of ground-level ozone, especially this afternoon. Think of it as lung sunburn.
- Brutal Heat: We're looking at 32.7°C (around 91°F) under mainly clear skies. When the sun bakes and the air doesn't move, that ozone just sits there, cooking. Dehydration and heat exhaustion are very real threats, even if you feel fine initially.
- Moderate Pollen: Adding insult to injury, pollen levels are moderate. If you've got allergies, this is just going to make that ozone-filled air even less pleasant to breathe.
Today's Dallas Run Down
Alright, Dallas, let's cut to the chase: Today is not your day to set a PR, especially if you're planning an afternoon slog around White Rock Lake. The triple threat of heat, sun, and an Ozone Action Day means your lungs are going to be working overtime, and not in a good way. The TCEQ, via the National Weather Service, is explicitly urging folks in Dallas-Fort Worth to limit outdoor activity due to expected high levels of ozone. This stuff isn't directly emitted; it forms when pollutants from cars and industry react with sunlight, and hot, still weather like today's is the perfect recipe for it.
Ozone Action Day Alert: High levels of ground-level ozone are expected today. This is bad for your lungs, especially if you have respiratory issues. Consider moving your workout indoors or rescheduling.
Heat Hazard: With temperatures pushing 32.7°C (91°F) and clear skies, heat exhaustion and heatstroke are serious risks. Hydrate constantly and listen to your body. Early morning or late evening is your only safe bet for outdoor activity.
Those early morning thunderstorms from yesterday are gone for now, but that just leaves us with plenty of sun to stew in today. And while yesterday had some localized flash flood warnings in Dallas County, those expired. So, no slippery trails at White Rock, but plenty of reasons to stay away from a lungful of ozone.
Pollen Breakdown
| Pollen Type | Level |
|---|---|
| General | Moderate |
Construction Watch: Keep in mind those massive I-30 Canyon and I-635 East projects are still ongoing. While they might not block your usual running path directly, traffic delays getting to popular spots could be a pain. Plan accordingly. Cesar Chavez Boulevard, Cadiz Street, and Akard Street at I-30 are closed and detoured through late 2028 or summer 2028.
Honestly, today's a great day to rediscover your gym membership or finally tackle that home workout video you’ve been putting off. Your lungs and joints will thank you.
Data grounded with Fort Worth Star-Telegram and Newsweek from May 24, 2026.