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5-day forecast / Allen, TX

WednesdayMostly Sunny101° / 81° 1%
ThursdaySunny101° / 82° 1%
FridaySunny104° / 82° 4%
SaturdayMostly Sunny99° / 76° 14%
SundaySunny97° / 76° 3%

Heat Advisory in Effect for Allen as Temperatures Climb Near 101 Degrees - Jul 29, 5 AM

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

A Heat Advisory is active for Allen, TX, with current conditions already feeling like 82F. Highs near 101F expected today and tomorrow with high humidity.

Zane Lowery

July 29, 20262 min read

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

*As of Jul 29, 5 AM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Allen, Texas, signaling dangerous heat levels that require caution. As of this Wednesday morning, the air temperature stands at 79F, but the combination of heat and moisture makes it feel like 82F. The atmosphere is quite humid, with the relative humidity at 84% and a dew point of 73F.

Winds are light, blowing at 6 mph with gusts reaching 14 mph, under a clear sky.

The National Weather Service has issued this advisory with moderate severity and expected urgency. It is designed to alert residents to the significant heat risk that will persist through the day.

While the official documentation references specific dates and times for the duration of this warning, the immediate concern is the rapid rise in temperatures and the resulting heat index values that will make conditions feel significantly hotter than the actual air temperature.

Forecast for Today and Tomorrow

Today, the sun will dominate the sky with mostly sunny conditions expected. Temperatures will climb to a high near 101F. The heat index, which accounts for the humidity, is projected to reach as high as 108F. Winds will remain from the south southwest at 5 to 10 mph. The chance of precipitation is minimal at just 1%, meaning the heat will be unbroken by rain.

Tonight, skies will become mostly clear. The low will drop to around 81F, though temperatures may rise slightly to around 83F overnight. Winds will shift to the south at 5 to 10 mph, and the heat index will remain elevated at values as high as 107F. This means the night will not offer much relief from the heat.

Tomorrow, the pattern continues with sunny skies and a high near 101F. The heat index is expected to hit 108F again. Winds will be from the south southwest at 5 to 10 mph. Overnight into tomorrow night, skies will clear further, with a low around 82F and winds from the south southeast around 10 mph.

Safety Reminder

Given the active Heat Advisory and the extreme heat index values, it is critical to stay hydrated and limit time spent outdoors during the hottest parts of the day. Check on neighbors, especially the elderly or those without air conditioning, and never leave people or pets in parked vehicles.

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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