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5-day forecast / Allen, TX

TuesdaySunny102° / 81°
WednesdaySunny101° / 82° 1%
ThursdayMostly Sunny101° / 82° 2%
FridayMostly Sunny102° / 82° 6%
SaturdaySunny100° / 77° 8%

Extreme Heat Warning and Air Quality Alert in Effect for Allen Tonight - Jul 22, 4 AM

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

Allen faces a severe heat warning and air quality alert tonight. Temperatures will remain dangerously high with heat indices reaching 114. Residents are urged to take precautions.

Zane Lowery

July 22, 20262 min read

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

*As of Jul 22, 4 AM local time.*

Critical Alerts and Current Conditions

Allen, TX is currently under multiple active weather alerts as the region endures oppressive heat and poor air quality. The National Weather Service has issued an Extreme Heat Warning with severe severity and expected urgency, valid until 8:00 PM CDT today. Additionally, a Heat Advisory with moderate severity and expected urgency is in effect until 8:00 PM CDT tomorrow.

An Air Quality Alert is also active, though its specific urgency and severity levels are currently listed as unknown.

Current conditions reflect the intensity of this heat event. At this time, the air temperature is 81F, but the combination of heat and humidity makes it feel like 86F. The relative humidity is sitting at 84% with a dew point of 75F, creating a muggy atmosphere. Winds are light at 6 mph with gusts to 6 mph, and the sky remains clear.

Forecast and Safety Guidance

The forecast for today indicates sunny skies with a high near 103F. The National Weather Service notes that heat index values will climb as high as 114. Winds will shift to the north northeast at 5 to 10 mph.

Tonight, conditions will remain clear with a low around 83F. Temperatures are expected to rise to around 85F overnight. Winds will become light, coming from the west southwest at around 0 mph.

Tomorrow brings slightly cooler highs near 98F, though the heat index will still reach as high as 104. Skies will stay sunny with east winds around 10 mph. Tomorrow night, the sky will be mostly clear with a low around 79F. Winds will shift to the east southeast at 5 to 10 mph.

Given the Extreme Heat Warning and the high heat indices, it is critical to stay hydrated and limit midday exertion. Check on neighbors, especially the elderly and those without air conditioning. Due to the active Air Quality Alert, individuals with respiratory sensitivities should consider limiting prolonged outdoor activities. Always monitor local updates as conditions can change rapidly during heat events.

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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Zane Lowery

Zane Lowery covers weather, storms, and seasonal life around Allen.

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