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5-day forecast / Dallas, TX

WednesdaySunny103° / 81° 1%
ThursdaySunny100° / 80°
FridaySunny101° / 82°
SaturdayMostly Sunny102° / 82° 4%
SundaySunny102° / 82° 2%

Dallas Faces Extreme Heat Warning and Air Quality Alert - Jul 21, 4 PM

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

An Extreme Heat Warning and Air Quality Alert are active for Dallas as temperatures soar to 106F with heat index values reaching 114F through tomorrow.

Demarcus Lindgren

July 21, 20262 min read

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

*As of Jul 21, 4 PM local time.*

Dangerous Heat and Air Quality Concerns

Dallas is currently under the influence of an Extreme Heat Warning and an Air Quality Alert. The National Weather Service in Fort Worth has issued these alerts to highlight the severe conditions affecting the region. Right now, the air temperature stands at 106F, but the heat index makes it feel like 108F.

Relative humidity is at 23% with a dew point of 61F. Winds are light from the north northwest at 5 mph with gusts up to 9 mph, and the sky remains mostly clear.

The Extreme Heat Warning is in effect until July 22 at 8:00PM CDT. This alert underscores the dangerous nature of the current heat, which poses significant risks to health and safety. Alongside this, an Air Quality Alert was issued on July 21 at 2:42PM CDT, indicating that air quality levels may reach unhealthy thresholds during this period.

Forecast for Today and Tomorrow

Today will be sunny with a high near 104F. The heat index is expected to reach as high as 112. Overnight, conditions will clear with a low around 84, though temperatures may rise to around 86 during the night. The heat index will remain elevated, reaching up to 111. Winds will shift to the southeast at 0 to 5 mph.

Tomorrow continues the hot trend with sunny skies and a high near 103F. The heat index is forecast to peak at 114, making it feel even hotter than the actual air temperature. Winds will be from the north northeast at 0 to 10 mph.

Tomorrow night will be clear with a low around 81, potentially rising to 83 overnight. The heat index will stay high at 110, with east northeast winds at 5 to 10 mph.

Safety Reminders

Given the Extreme Heat Warning, it is critical to stay hydrated and limit midday exertion. Seek air-conditioned environments as much as possible. Check on neighbors and vulnerable individuals who may be at risk from the heat. Due to the Air Quality Alert, consider reducing prolonged outdoor activities, especially if you have respiratory conditions. Monitor local news for updates on these alerts.

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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