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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%

Heat Advisory in Effect for Allen as Temperatures Soar Near 102F - Jul 27, 8 AM

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

A Heat Advisory is active for Allen, TX, with highs near 102F and heat index values up to 108F. Current conditions are hot and humid.

Zane Lowery

July 27, 20262 min read

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

*As of Jul 27, 8 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. The National Weather Service has issued this moderate-severity alert due to the combination of extreme temperatures and humidity. As of this morning, the air temperature stands at 84F, but the heat index makes it feel like 88F.

The atmosphere is quite humid, with a dew point of 70F and relative humidity at 62%. Winds are blowing from the south southwest at 8 mph, with gusts reaching up to 20 mph, while the sky remains clear.

Forecast for Today and Tomorrow

Today will be intensely hot and sunny, with a high near 102F. The heat index is expected to reach as high as 108F. South southwest winds will persist around 10 mph. There is no chance of precipitation today, leaving the sun unobstructed and temperatures climbing steadily.

Tonight, skies will become mostly clear, allowing for a slight cooldown, though temperatures will remain elevated. The low will drop to around 81F, but conditions will warm back up to approximately 83F overnight. The heat index will still climb to 106F. South winds will continue around 10 mph.

Tomorrow mirrors today’s intensity. Expect another sunny day with a high near 102F. The heat index will peak at 106F.

Winds will shift slightly to the south southwest, ranging from 5 to 10 mph. Like today, there is zero percent chance of rain. Tomorrow night will also be mostly clear, with a low around 82F and temperatures rising to 84F overnight.

The heat index will reach 105F under south winds of 5 to 10 mph.

Safety Reminders

Given the active Heat Advisory and the extreme heat index values, residents are urged to take this weather seriously. Hydrate frequently and limit any strenuous outdoor exertion, especially during the midday hours when the sun is strongest. Check on elderly neighbors or those without air conditioning to ensure their safety.

If you must be outside, seek shade and wear lightweight, light-colored clothing to help manage the heat stress.

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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