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5-day forecast / Allen, TX

MondaySunny97° / 73° 13%
TuesdayMostly Sunny95° / 73° 6%
WednesdayMostly Sunny95° / 71° 4%
ThursdayMostly Sunny93° / 70° 2%
FridayMostly Sunny93° / 72°

Allen Weather: Extreme Heat and Scattered Storms Expected - Sep 21, 2 PM

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

Allen residents face intense heat with current temperatures at 93F and a feels-like value of 98F. A chance of showers and thunderstorms exists today, with highs near 97F.

Zane Lowery

September 21, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Sep 21, 2 PM local time.*

Intense Heat Dominates Allen Afternoon

The afternoon in Allen is defined by significant heat, with the air temperature currently sitting at 93 degrees Fahrenheit. The combination of warmth and 44 percent relative humidity creates a feels-like temperature of 98 degrees. The sky remains clear, and winds are light at 3 mph, offering little relief from the thermal load.

The dew point is 68 degrees, indicating a muggy atmosphere that will persist through the evening. Residents should be aware that the heat index values are expected to reach as high as 101 degrees later in the day, making the perceived temperature even more intense than the actual air temperature.

Rain Chance and Evening Outlook

While the sun is shining, there is a 32 percent chance of precipitation today, with the potential for showers and thunderstorms. The high temperature is expected to reach near 97 degrees before falling to around 95 degrees in the afternoon. As evening approaches, the chance for storms remains at 30 percent, with activity likely to taper off before 10 pm.

The sky will become mostly clear, and temperatures will drop to a low near 73 degrees. Winds will shift to the north-northeast, ranging from 5 to 10 mph, which may provide some slight cooling effect overnight. The heat index values tonight are expected to peak at 97 degrees, meaning the air will still feel warm well into the night.

Tomorrow’s Forecast and Safety

Tomorrow brings a slight dip in the high temperature, which is expected to be near 95 degrees. The sky will be mostly sunny, and the chance of precipitation drops significantly to just 6 percent. However, the heat index values are projected to reach as high as 102 degrees, indicating that the perceived heat will remain extreme.

Winds will continue from the north-northeast at 5 to 10 mph. Given the sustained high heat index values across both days, it is crucial to stay hydrated and limit midday exertion. Checking on neighbors who may be vulnerable to the heat is a prudent safety measure during this period of intense warmth.

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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