It is a clear, sticky start in Dallas today, with mid-morning readings near 79 and humidity already making the air feel muggy. By this afternoon, temperatures are expected to climb into the mid-90s, with heat-index values near 100 and a warm, stuffy low around 75 to 76 tonight. An Ozone Action Day is in effect for today across the Dallas-Fort Worth metro, so afternoon air quality could be rough on sensitive groups.
Afternoon Heat and Commute
Most neighborhoods will stay mostly sunny with a slow, steady warm-up, topping out near 95. Light south-southeast winds will not do much to cool things down, so mid-day and late-afternoon yard work or construction shifts will feel hotter than the numbers suggest. Peak commute hours could be especially uncomfortable for cyclists and anyone working outdoors. Forecasters at the National Weather Service Fort Worth expect heat-index values to push close to 100 this afternoon.
Ozone Alert and Health
The Texas Commission on Environmental Quality has called an Ozone Action Day for today, warning that sunny, stagnant conditions may send ground-level ozone into ranges that bother people with asthma, older adults, and children. Officials suggest scaling back strenuous outdoor activity during the late afternoon, putting off yard work until cooler hours, and cutting down on driving where possible to help limit ozone formation. Check the TCEQ for hourly advisories and practical tips.
Later This Week
Scattered storm chances make a comeback tomorrow and on Wednesday, with forecasters looking for the first uptick in coverage by late tomorrow afternoon and a roughly 20–30% chance of storms in parts of the region. Rain chances increase on Friday into Saturday, when more widespread showers and thunderstorms are most likely and could help nudge temperatures back toward seasonal norms. Any storms that form could bring brief heavy downpours and gusty winds, so it is worth keeping an eye on the radar during the afternoon and evening.
What To Do
Plan outdoor workouts for early morning or later in the evening, carry water, and take frequent shade breaks if you have to be out during peak heat. If you have respiratory issues, keep medications handy and consider moving activities indoors at many libraries, rec centers, and Beat the Heat cooling sites that open during hot stretches. For real-time air quality and hourly weather updates, check the TCEQ forecast and your local radar before you head out.
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