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5-day forecast / Allen, TX

SundaySlight Chance Showers And Thunderstorms95° / 74° 16%
MondayChance Showers And Thunderstorms95° / 75° 29%
TuesdayMostly Sunny95° / 75° 1%
WednesdayRain Showers Likely91° / 73° 56%
ThursdayShowers And Thunderstorms Likely85° / 69° 74%

Heat Advisory in Effect for Allen as Temperatures Soar to 102F - Aug 13, 5 AM

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

A Heat Advisory is active for Allen, TX, with heat index values reaching 105F today. Residents are urged to take precautions against dangerous heat conditions.

Zane Lowery

August 13, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Aug 13, 5 AM local time.*

Dangerous Heat Conditions Underway

A Heat Advisory is currently in effect for Allen, Texas, signaling dangerous heat conditions that require caution. The National Weather Service has issued this moderate-severity alert, which remains active until 8:00 PM CDT today. Residents should be aware that the combination of high temperatures and humidity will make it feel significantly hotter than the actual air temperature.

Current conditions in Allen show an air temperature of 95F, but the heat index is pushing values to 105F. The relative humidity stands at 50%, with a dew point of 73F, contributing to the muggy atmosphere. Winds are blowing from the south southwest at around 15 mph, with gusts reaching up to 25 mph, providing minimal relief from the warmth.

The sky remains clear, allowing full solar heating to intensify the day's heat.

Forecast for Today and Tomorrow

Today will be sunny with a high near 102F. The heat index is expected to reach as high as 105F during the peak afternoon hours. There is a 0% chance of precipitation, meaning no rain is expected to cool things down. Winds will continue from the south southwest around 15 mph, with gusts as high as 25 mph.

Tonight, skies will remain clear. Temperatures will drop to a low around 81F, though they may rise slightly to around 83F overnight. The heat index will remain elevated at values as high as 103F. South winds will persist around 15 mph, with gusts up to 25 mph.

Tomorrow will also be sunny, with a high near 100F. The heat index is forecast to reach 104F. South winds will continue around 15 mph, with gusts as high as 25 mph. Tomorrow night will be mostly clear, with a low around 81F and south winds of 10 to 15 mph, with gusts up to 25 mph.

Safety Reminders

Given the active Heat Advisory and dangerous heat index values, it is critical to stay hydrated and limit outdoor exertion, especially during midday hours. Check on neighbors, particularly the elderly and those without air conditioning. Never leave people or pets in parked vehicles. If you must be outside, seek shade and wear lightweight, light-colored clothing.

National Weather Service radar for North Texas (KFWS)

Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data

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Zane Lowery

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

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