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5-day forecast / Dallas, TX

FridaySunny105° / 82° 8%
SaturdayMostly Sunny then Slight Chance Showers And Thunderstorms107° / 82° 11%
SundaySunny106° / 84° 5%
MondaySunny107° / 83° 4%
TuesdaySlight Chance Rain Showers107° / 83° 15%

Dallas Heat Warning: Temps Hit 105F, Air Quality Alert Active - Aug 21, 2 PM

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

Dallas faces an Extreme Heat Warning with highs near 105F and heat indices reaching 108F. An Air Quality Alert is also in effect. Stay hydrated and limit outdoor exertion.

Demarcus Lindgren

August 21, 20262 min read

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

*As of Aug 21, 2 PM local time.*

Severe Heat Warning in Effect

Dallas is currently under an Extreme Heat Warning issued by the National Weather Service Fort Worth office. This severe alert remains active until 8:00 PM CDT on August 22. Additionally, an Air Quality Alert has been issued, prompting residents to monitor their health and limit prolonged outdoor activities.

The combination of intense heat and potential air quality issues requires careful attention to personal safety throughout the day and into the evening.

Current Conditions and Today's Outlook

It is currently Friday afternoon, with the air temperature sitting at 97F. The heat index makes it feel like 104F, while relative humidity stands at 42% and the dew point is 70F. Winds are blowing at 16 mph with gusts reaching 14 mph, and the sky remains clear.

For the rest of today, expect sunny conditions with a high near 105F and a low near 82F. The chance of precipitation is minimal at 8%. Heat index values are expected to reach as high as 108F, with south winds around 5 mph.

Tonight will be partly cloudy, with lows near 82F, though temperatures may rise to around 84F overnight. Heat indices could reach 105F, and south southeast winds will remain around 5 mph.

Tomorrow's Forecast and Safety Reminders

Tomorrow will bring mostly sunny skies with a high near 107F and a low near 82F. There is an 11% chance of precipitation, with a slight chance of showers and thunderstorms developing after 4 PM. Heat index values may reach 109F, and south southwest winds will be around 5 mph.

Given the dangerous heat levels, it is crucial to stay hydrated, limit midday exertion, and check on vulnerable neighbors. Avoid prolonged exposure to direct sunlight, especially during peak afternoon hours. Monitor air quality updates and adjust outdoor plans accordingly to protect your health.

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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