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5-day forecast / Richardson, TX

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

Extreme Heat Warning in Effect for Richardson as Temperatures Soar Near 104F - Jul 21, 9 AM

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

An Extreme Heat Warning is active for Richardson, TX, with highs near 104F and heat index values reaching 111F. Residents are urged to take precautions against severe heat.

Reese Janssen

July 21, 20262 min read

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

*As of Jul 21, 9 AM local time.*

Severe Heat Alert Active

An Extreme Heat Warning is currently in effect for Richardson, Texas, signaling dangerous conditions that require immediate attention. The National Weather Service has issued this severe alert due to the potential for life-threatening heat levels. The warning is active now and continues through the evening, emphasizing the need for caution during the peak heat hours.

Current Conditions and Forecast

Right now, the air temperature stands at 84F, with a feels-like temperature of 86F. The relative humidity is at 52%, and the dew point is 64F. Winds are light, blowing at 3 mph with gusts reaching 13 mph, under a clear sky.

Today, the sun will remain out, bringing a high near 104F. The heat index is expected to climb as high as 111F, making it feel significantly hotter than the actual air temperature. West southwest winds will be around 5 mph.

Overnight, skies will become mostly clear, with a low around 84F. Temperatures may rise slightly to around 86F during the night. The heat index will remain elevated, reaching up to 109F, with south winds between 0 and 5 mph.

Tomorrow, the sun will shine again, with a high near 103F. The heat index will once again reach 111F. Winds will shift to the north northeast, blowing between 5 and 10 mph.

Tomorrow night will be mostly clear, with a low around 81F. Temperatures may rise to around 83F overnight. The heat index will be as high as 108F, with east northeast winds of 5 to 10 mph.

Safety Reminders

Given the severity of the Extreme Heat Warning, it is critical to stay cool and hydrated. Limit outdoor exertion, especially during the midday and afternoon hours when temperatures are highest. Check on elderly neighbors and those without air conditioning.

If you must be outside, seek shade frequently and drink water often, even if you do not feel thirsty. Avoid direct sun exposure and wear lightweight, light-colored clothing to help manage the intense heat.

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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