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5-day forecast / Allen, TX

FridayMostly Sunny92° / 71°
SaturdayMostly Sunny93° / 73°
SundaySlight Chance Showers And Thunderstorms96° / 74° 22%
MondayMostly Sunny96° / 75° 11%
TuesdayChance Showers And Thunderstorms93° / 73° 29%

Heat Advisory in Effect for Allen as Temperatures Climb Toward 101 - Aug 11, 8 AM

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

A Heat Advisory is active for Allen, TX, with heat indices reaching 107 today. Humidity remains high with a dew point of 73F. Temperatures will rise to 101F tomorrow.

Zane Lowery

August 11, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Aug 11, 8 AM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Allen, Texas, signaling moderate severity and expected urgency from the National Weather Service. This alert remains active until 8:00 PM CDT today. Residents should be aware that the combination of high temperatures and significant humidity is creating dangerous heat index values.

Right now, the air temperature in Allen stands at 81F, though it feels like 85F due to the moisture in the air. The relative humidity is sitting at 79%, with a dew point of 73F, indicating quite humid conditions. Winds are blowing from the south southwest at 11 mph, with gusts reaching up to 20 mph. The sky remains clear overhead.

Forecast for Today and Tomorrow

Today, the sun will dominate the sky with a high near 99F. The heat index is expected to climb as high as 107, making it feel significantly hotter than the actual air temperature. South southwest winds will continue at 10 to 15 mph. The chance of precipitation is minimal at just 1%.

Tonight, skies will become mostly clear, allowing temperatures to drop to a low around 79F. However, the heat will linger, with temperatures rising to around 81F overnight. Heat index values will remain elevated at up to 104. South winds will persist at 10 to 15 mph.

Looking ahead to tomorrow, conditions will remain sunny with a high near 101F. This marks a further increase in heat, with heat index values reaching as high as 105. Winds will shift to the south, maintaining speeds of 10 to 15 mph, but gusts may increase to as high as 25 mph. The chance of rain is 0%.

Safety Reminders

Given the active Heat Advisory and the high heat indices forecasted for the next 24 hours, it is crucial to take precautions. Stay hydrated by drinking plenty of water, even if you do not feel thirsty. Limit outdoor exertion, especially during the midday hours when the sun is strongest.

Check on elderly neighbors or those who may be vulnerable to heat-related illnesses. If you must be outside, seek air-conditioned spaces frequently and wear lightweight, light-colored clothing to help manage the intense heat.

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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