Dallas

Dallas Braces for Showers and Potential Severe Thunderstorms, Heat Index to Hit 98 Degrees

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Published on May 18, 2025
Dallas Braces for Showers and Potential Severe Thunderstorms, Heat Index to Hit 98 DegreesSource: BullDawg2021, CC BY 4.0, via Wikimedia Commons

Dallas residents might want to keep their umbrellas close and plan for potential disruptions as the weather takes a turbulent turn. The National Weather Service has forecasted a 20 percent chance of showers and thunderstorms after 1 pm today, with cloudy skies and high temperatures nearing 88 degrees. The heat index could spike to a blistering 98 degrees, propelled by a south wind blowing at 10 to 15 mph, gusting up to 25 mph, according to the National Weather Service.

Tonight, the chance of precipitation climbs to 50 percent, centering mostly before 10 pm with potential new rainfall amounts between a half and three-quarters of an inch. The winds are expected to persist from the south-southeast around 15 mph, gusting as high as 25 mph. As Monday rolls in, showers and thunderstorms appear likely, mainly post-1 pm, some of which could be severe. "Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible," stated the National Weather Service prediction.

Heading into Monday night, there's a 40 percent chance of continued showers and thunderstorms before 1 a.m., but the skies are anticipated to clear up subsequently. The low should hover around 71 degrees, with south winds blowing at a similar intensity to the preceding days. Tuesday brings a reprieve with sunny conditions and a high near 85 degrees, though the wind will change direction from south southwest to north northwest as the day progresses.

As the week progresses, Dallasites can expect mostly sunny and clear conditions, with temperatures gradually inching up. Wednesday's forecast points to another mostly sunny day with a high of 86 degrees, and by Saturday, thermometers could be reading near the 90 mark, "East northeast wind 5 to 10 mph," as per the National Weather Service. These clearer skies will likely be accompanied by lows in the mid-60s to around 70, offering a brief but welcome cooling off during the nighttime hours.

For those making plans for the latter part of the week, the weather seems to be cooperating with mostly sunny days and clear nights. Thursday's anticipated high is around 83 degrees, and come Friday, temperatures are expected to climb back up, presenting a sunny day with a high near 87 degrees. Overall, after a potentially stormy start to the week, the forecast suggests a stretch of pleasant weather conditions ideal for outdoor activities.

Dallas-Weather & Environment