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5-day forecast / Richardson, TX

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

Richardson Heat Index Hits 99°F Today With Oppressive Humidity - Jul 17, 12 PM

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

Richardson residents face a very hot Friday with a high near 93°F and a heat index reaching 99°F. Humidity remains high with a dew point of 79°F. No severe weather alerts are in effect.

Reese Janssen

July 17, 20262 min read

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

*As of Jul 17, 12 PM local time.*

Current Conditions and Heat Stress

Richardson is experiencing oppressive heat and humidity this Friday afternoon. The air temperature stands at 84°F, but the combination of moisture and heat pushes the feels-like temperature to 96°F. Relative humidity is sitting at 84%, with a dew point of 79°F, creating a muggy atmosphere that makes the heat feel more intense than the thermometer reading suggests.

Winds are currently blowing from the south southwest at 11 mph, with gusts reaching 17 mph. The sky is mostly cloudy, which may offer slight relief from direct sun but does little to lower the humidity levels. The National Weather Service forecasts heat index values as high as 99°F today, emphasizing the need for caution during outdoor activities.

Forecast for Today, Tonight, and Tomorrow

Today, conditions will remain partly sunny with a high near 93°F. The heat index is expected to peak at 99°F. South southwest winds will average around 10 mph, with gusts potentially reaching 20 mph. The chance of precipitation is low at 8%, so rain is not expected to provide significant relief.

Tonight, the sky will become mostly cloudy with a low around 77°F. The heat index will remain elevated, with values as high as 97°F. South winds will decrease to 5 to 10 mph, though gusts may still hit 20 mph. Residents should expect a warm and humid night with little drop in discomfort.

Tomorrow, the weather will shift to mostly sunny skies with a high near 96°F. This marks a further increase in heat, with the heat index again reaching 99°F. South southwest winds will return at around 10 mph, with gusts up to 20 mph.

The chance of precipitation drops to 3%, keeping the day dry. Tomorrow night will be mostly clear with a low around 78°F, and temperatures may rise to around 80°F overnight. The heat index will remain high at 99°F, with south winds of 5 to 10 mph.

Safety Reminders

With heat indices nearing 100°F, it is crucial to stay hydrated and limit midday exertion. Check on elderly neighbors and ensure pets have access to cool water and shade. Avoid prolonged exposure to the sun during peak heat hours to prevent heat-related illnesses.

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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