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5-day forecast / Allen, TX

SaturdaySunny97° / 74° 1%
SundaySunny97° / 75°
MondaySunny99° / 77°
TuesdaySunny101° / 79° 1%
WednesdaySunny100° / 80° 1%

Heat Advisory in Effect for Allen as Temperatures Soar Past 100 - Jul 31, 5 PM

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

A Heat Advisory is active for Allen, TX, with dangerous heat index values reaching 111 today. Temperatures remain dangerously high through tonight before a slight cooldown arrives tomorrow.

Zane Lowery

July 31, 20262 min read

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

*As of Jul 31, 5 PM local time.*

Dangerous Heat Conditions Continue

A Heat Advisory is currently in effect for Allen, Texas, signaling dangerous heat conditions that require caution. As of this evening, the air temperature stands at 102F, but the heat index makes it feel like 106F. The relative humidity is at 29%, with a dew point of 64F.

Winds are blowing from the southwest at 7 mph, with gusts reaching 12 mph, under a clear sky.

The National Weather Service in Fort Worth issued this advisory for moderate severity with expected urgency. The official alert is valid from July 31 at 12:33PM CDT until July 31 at 8:00PM CDT. Residents should be aware that heat index values are forecast to reach as high as 111 during the day.

This extreme heat poses significant risks to health, particularly for those spending time outdoors.

Forecast for Today, Tonight, and Tomorrow

Today remains sunny with a high near 103F and a low near 81F. The chance of precipitation is minimal at 1%. Southwest winds will average around 10 mph.

Tonight, skies will transition to partly cloudy conditions. Temperatures will drop to a low around 81, though they may rise slightly to around 83 overnight. Heat index values will remain elevated, reaching up to 109.

Southwest winds will persist at 5 to 10 mph.

Tomorrow brings a slight reprieve from the peak heat, with mostly sunny skies and a high near 98F. The low will be near 74F, and the chance of precipitation is 7%. Winds will shift to the north, blowing at 10 to 15 mph with gusts as high as 25 mph.

Heat index values will drop to around 98. Tomorrow night will be mostly clear with a low around 74, rising to about 76 overnight. North northeast winds will be 5 to 10 mph, with gusts up to 20 mph.

Safety Reminders

Given the active Heat Advisory and dangerous heat index values, it is critical to stay hydrated and limit midday exertion. Seek air-conditioned environments during the hottest parts of the day. Check on neighbors and vulnerable individuals who may be at higher risk from heat-related illnesses. Do not leave people or pets in parked vehicles, as temperatures inside can rise rapidly to life-threatening levels.

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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