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5-day forecast / Richardson, TX

TuesdaySunny101° / 81°
WednesdaySunny102° / 82°
ThursdayMostly Sunny102° / 83°
FridaySunny103° / 83° 4%
SaturdaySunny101° / 78° 9%

Heat Advisory in Effect for Richardson as Temperatures Climb to 102F - Jul 26, 4 PM

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

A Heat Advisory is active for Richardson, TX, with dangerous heat index values reaching up to 109F. Residents are urged to take precautions against extreme heat today and tomorrow.

Reese Janssen

July 26, 20262 min read

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

*As of Jul 26, 4 PM local time.*

Dangerous Heat Conditions Underway

A Heat Advisory is currently in effect for Richardson, Texas, signaling dangerous heat conditions that require caution. As of this Sunday afternoon, the air temperature stands at 99F, but the heat index makes it feel like 100F. The relative humidity is at 31% with a dew point of 63F.

Winds are blowing from the south at 9 mph, with gusts reaching 11 mph, under a clear sky.

The National Weather Service has issued this advisory due to the intense heat expected to persist through the weekend. The official alert indicates the advisory was issued on July 26 and remains in effect until July 27. This warning highlights the severity of the heat, urging residents to stay cool and hydrated.

Forecast for Today and Tomorrow

Today, Richardson will experience sunny skies with a high near 102F. The heat index is expected to reach as high as 108F. South winds will remain around 10 mph. There is a 0% chance of precipitation, ensuring dry conditions continue.

Tonight, the sky will become mostly clear. Temperatures will drop to a low around 81F, though they may rise slightly to around 83F overnight. The heat index will remain elevated, with values as high as 106F. South winds will continue around 10 mph.

Tomorrow, conditions will mirror today with sunny skies and a high near 102F. The heat index is forecast to peak at an even higher 109F. Winds will shift to the south southwest at around 10 mph. Like today, there is no chance of rain.

Safety Reminders

Given the active Heat Advisory and the extreme heat index values, it is critical to prioritize safety. 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 and relatives who may be vulnerable to heat-related illnesses. If you must be outside, seek shade or air-conditioned spaces frequently. Do not leave children or pets in parked vehicles, as temperatures inside can rise rapidly to dangerous levels.

Please monitor local weather updates for any changes to the advisory status.

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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Reese Janssen

Reese Janssen covers weather, storms, and seasonal life around Richardson.

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