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5-day forecast / Allen, TX

ThursdaySunny100° / 82° 3%
FridaySunny103° / 82° 1%
SaturdayMostly Sunny98° / 75° 9%
SundaySunny95° / 75° 1%
MondaySunny97° / 77° 1%

Heat Advisory in Effect for Allen as Temperatures Climb Near 100 Degrees - Jul 30, 4 AM

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

A Heat Advisory is active for Allen, TX, with highs near 100F and heat index values up to 109F. Humidity remains high with a dew point of 72F.

Zane Lowery

July 30, 20262 min read

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

*As of Jul 30, 4 AM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Allen, Texas, signaling dangerous heat conditions for the region. The National Weather Service has issued this moderate-severity alert due to expected high temperatures and significant heat index values. As of this Thursday overnight, the air temperature stands at 79F, but the combination of heat and moisture makes it feel like 82F.

The relative humidity is at 79%, with a dew point of 72F, indicating quite humid air. Winds are currently light at 5 mph with gusts reaching 11 mph, and the sky remains clear.

Forecast for Today and Tomorrow

Today, the sun will dominate the sky with no significant chance of precipitation, which is listed at just 3%. Highs will reach near 100F. The heat index is expected to climb as high as 108F, driven by south southwest winds of 5 to 10 mph.

Temperatures will drop to a low near 81F tonight. The sky will be mostly clear with a south wind around 5 mph. However, temperatures may rise to around 84F overnight, with heat index values peaking at 107F as winds shift to around 10 mph from the south.

Tomorrow brings even more intense heat. The forecast calls for sunny skies with a high near 103F. The heat index is projected to reach as high as 109F, with southwest winds around 10 mph.

The chance of precipitation remains minimal at 1%. Lows will settle near 82F. Overnight into the early hours of the next day, skies will turn partly cloudy, with temperatures rising to around 84F again under southwest winds of 10 mph.

Safety Reminders

Given the active Heat Advisory and the extreme heat index values, residents are urged to take precautions. Stay hydrated by drinking plenty of water throughout the day. Limit outdoor exertion, especially during the midday hours when the sun is strongest.

Check on elderly neighbors and those who may be vulnerable to heat-related illnesses. Keep vehicles parked in the shade when possible, as interior temperatures can rise rapidly.

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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