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5-day forecast / Dallas, TX

SundaySlight Chance Showers And Thunderstorms100° / 79° 12%
MondaySunny100° / 79° 7%
TuesdaySunny100° / 80° 1%
WednesdaySunny102° / 80°
ThursdaySunny101° / 79°

Dallas Heat Index Hits 103 as Temperatures Climb to 99F - Aug 9, 12 PM

Dallas weather, updated every four hours — local forecasts you can trust.

Current conditions in Dallas show a feels-like temperature of 99F with high humidity. Today's high will reach near 99F, with heat index values peaking at 103F.

Demarcus Lindgren

August 9, 20262 min read

National Weather Service radar for North Texas (KFWS)
National Weather Service radar for North Texas (KFWS)

*As of Aug 9, 12 PM local time.*

Current Conditions and Heat Index

It is currently Sunday this afternoon in Dallas, TX, where the air temperature stands at 93F. However, the combination of heat and moisture makes it feel significantly warmer, with a feels-like temperature of 99F. The relative humidity is at 47%, supported by a dew point of 70F, indicating quite humid conditions that trap heat close to the ground.

Winds are currently calm at 0 mph, though gusts have reached up to 8 mph. The sky remains clear overhead.

Forecast for Today and Tomorrow

The National Weather Service indicates that today will be sunny with a high near 99F. As the day progresses, heat index values are expected to climb as high as 103F. South winds will pick up slightly, blowing between 5 to 10 mph.

The chance of precipitation is minimal at just 3%. Temperatures will drop tonight to a low near 80F under clear skies, with the heat index remaining elevated at values as high as 103F due to persistent humidity and south winds of 5 to 10 mph.

Looking ahead to tomorrow, conditions will remain sunny with a high near 100F. The heat index is forecast to reach as high as 103F again. Winds will continue from the south at 5 to 10 mph, but gusts may increase significantly, reaching as high as 20 mph.

Overnight into tomorrow night, skies will clear with a low around 80F. The heat index will stay high at 103F, accompanied by south southeast winds around 10 mph with gusts up to 20 mph.

Safety Reminders

With temperatures and heat indices consistently in the upper 90s and low 100s, it is crucial to prioritize hydration. Drink plenty of water throughout the day, even if you do not feel thirsty. Limit outdoor exertion during the hottest parts of the afternoon when the sun is most intense.

If you must be outside, seek shade or air-conditioned spaces frequently. Check on elderly neighbors and those without reliable cooling, as extreme heat can pose serious health risks quickly. Stay aware of your body’s signals and move at a slower pace than usual to avoid heat-related illnesses.

National Weather Service radar for North Texas (KFWS)

Sources

https://radar.weather.gov

https://api.weather.gov

https://open-meteo.com

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Demarcus Lindgren

Demarcus Lindgren covers weather, storms, and seasonal life around Dallas.

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