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5-day forecast / Richardson, TX

ThursdaySunny105° / 83° 5%
FridaySunny then Slight Chance Showers And Thunderstorms106° / 82° 23%
SaturdaySunny106° / 82° 11%
SundaySunny105° / 83° 4%
MondaySunny105° / 82° 4%

Extreme Heat Warning in Effect for Richardson as Temperatures Soar - Aug 20, 2 PM

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

An Extreme Heat Warning is active for Richardson, TX, with heat index values reaching up to 109 degrees. Residents are urged to take precautions against severe heat.

Reese Janssen

August 20, 20262 min read

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

*As of Aug 20, 2 PM local time.*

Severe Heat Alert Active

A severe Extreme Heat Warning is currently in effect for Richardson, Texas, issued by the National Weather Service in Fort Worth. This alert remains active until August 21 at 8:00 PM CDT. The warning highlights dangerously high temperatures that pose significant risks to health and safety for those exposed to the elements without proper protection.

Current Conditions and Forecast

As of this Thursday afternoon, conditions are already intense. The air temperature stands at 97F, with a feels-like temperature of 99F due to humidity levels at 35% and a dew point of 64F. Winds are light from the south at 6 mph, with gusts reaching 7 mph, under a clear sky.

Today is expected to be sunny with a high near 105F. The National Weather Service notes that heat index values will climb as high as 108. Overnight tonight, skies will become mostly clear with a low around 83F.

Temperatures may rise slightly to around 85 during the night hours. There is a slight chance of showers and thunderstorms between 7pm and 10pm. Winds will shift to south at 5 to 10 mph.

Tomorrow brings even more intense heat, with a high near 106F and sunny skies initially. The heat index is forecast to reach as high as 109. A slight chance of showers and thunderstorms is possible after 4pm, bringing the total chance of precipitation to 23%. Winds will remain from the south southwest around 5 mph.

Safety Reminders

Given the severity of the warning and the extreme heat index values, it is critical to stay hydrated and limit outdoor exertion, especially during midday hours. Check on neighbors and vulnerable individuals who may not have access to air conditioning. Avoid leaving children or pets in vehicles, as interior temperatures can rise rapidly. If you must be outside, seek shade and wear lightweight, light-colored clothing.

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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