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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 Climb Near 102 - Jul 27, 4 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 indices reaching 108F. Humidity remains high with a dew point of 70F.

Zane Lowery

July 27, 20261 min read

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

*As of Jul 27, 4 AM local time.*

Alert and Current Conditions

A Heat Advisory is currently in effect for Allen, Texas, signaling dangerous heat levels that require caution. The advisory is classified as moderate severity with expected urgency. It remains active until 8:00 PM CDT on July 27.

Right now, the air temperature stands at 79F, with a feels-like temperature of 80F. The sky is clear, and the relative humidity is at 74%, with a dew point of 70F. Winds are blowing from the south southwest at 5 mph, with gusts reaching up to 14 mph.

Forecast Overview

Today will be sunny with a high near 102F. The National Weather Service indicates heat index values as high as 108F. South southwest winds will hover around 10 mph.

Overnight, skies will remain mostly clear. Temperatures will drop to a low around 81F, though they may rise to approximately 83F later in the night. Heat index values are expected to reach 106F.

Winds will continue from the south at around 10 mph.

Tomorrow follows a similar pattern with sunny skies and a high near 102F. Heat index values will peak at 106F. South southwest winds will range from 5 to 10 mph. The night ahead will be mostly clear, with a low around 82F. Temperatures may climb to about 84F overnight. Winds will persist from the south at 5 to 10 mph.

Safety Reminder

Given the active Heat Advisory and high humidity, it is critical to stay hydrated and limit time spent outdoors during the hottest parts of the day. Check on elderly neighbors and those without air conditioning. Avoid strenuous activity during midday hours to prevent heat-related illnesses. Keep vehicles parked in shade when possible to prevent interior temperatures from soaring.

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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