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5-day forecast / Richardson, TX

TuesdaySunny99° / 80° 1%
WednesdaySunny100° / 81°
ThursdaySunny100° / 80°
FridaySunny99° / 81°
SaturdaySunny101° / 81°

Heat Advisory in Effect for Richardson as Temperatures Climb Near 100 - Aug 11, 4 AM

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

A Heat Advisory is active for Richardson, TX, with highs near 100F and heat index values up to 104F. Current conditions show 81F with 70% humidity.

Reese Janssen

August 11, 20262 min read

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

*As of Aug 11, 4 AM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Richardson, Texas, signaling moderate severity and expected urgency. Residents are advised to take precautions as the region experiences significant heat and humidity. The National Weather Service has issued this alert to highlight the potential for heat-related illnesses during the upcoming period.

Right now, the air temperature stands at 81F, though it feels like 84F due to the moisture in the air. The relative humidity is at 70%, with a dew point of 70F, creating a muggy atmosphere. Winds are blowing from the south at 10 mph, with gusts reaching up to 21 mph. The sky remains clear overhead, allowing for rapid heating as the day progresses.

Forecast for Today and Tomorrow

Today, the sun will dominate the sky with a high near 99F. The heat index is expected to reach as high as 104F, making it feel significantly hotter than the actual air temperature. There is only a 1% chance of precipitation, so skies will stay sunny. South southwest winds will continue around 10 mph, with gusts as high as 20 mph.

Tonight, conditions will remain mostly clear. Temperatures will drop to a low around 80F, but will rise to around 82F overnight. The heat index may still reach 103F. South winds will persist at around 10 mph, with gusts up to 20 mph.

Tomorrow, the heat will intensify further with a high near 100F. The heat index is forecast to hit 104F again. Skies will remain sunny with a 0% chance of rain. Winds will increase slightly, coming from the south at 10 to 15 mph, with gusts as high as 25 mph. Tomorrow night will be clear with a low around 81F and similar wind speeds.

Safety Reminders

Given the active Heat Advisory and high heat index values, it is crucial to stay hydrated and limit midday exertion. Check on neighbors, especially the elderly and those without air conditioning. Wear lightweight, light-colored clothing and seek air-conditioned environments during the hottest parts of the day.

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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