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5-day forecast / Richardson, TX

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

High Humidity and Heat Index Near 103 Expected in Richardson - Jul 17, 4 AM

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

Richardson faces a humid start with a dew point of 73F. Temperatures will climb to 96F tomorrow with a heat index reaching 103F. No weather alerts are active.

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, 4 AM local time.*

Current Conditions and Humidity

It is currently Friday overnight in Richardson, and the air feels heavy with moisture. The current air temperature stands at 79F, but the feels-like temperature is 82F due to the high humidity. The relative humidity is at 84%, with a dew point of 73F, indicating a muggy atmosphere. Winds are blowing at 7 mph with gusts reaching 18 mph, while the sky remains clear.

Forecast for Today and Tomorrow

Today, Richardson will see mostly sunny skies with a high near 92F and a low near 75F. The chance of precipitation is 10%. According to the National Weather Service, heat index values will reach as high as 100 today. South winds will range from 5 to 10 mph, with gusts as high as 25 mph.

Tonight, conditions will shift to mostly cloudy skies. Temperatures will drop to a low around 75F, though they may rise to around 77F overnight. South winds will decrease to around 5 mph.

Tomorrow, the heat will intensify. Skies will remain mostly sunny with a high near 96F and a low near 77F. The chance of precipitation drops to just 2%. The heat index is expected to climb to 103F. South southwest winds will be around 10 mph, with gusts up to 20 mph.

Safety and Alerts

There are no active National Weather Service or NOAA weather alerts in effect for Richardson. However, the combination of high temperatures and humidity requires caution. The heat index values approaching 103F tomorrow pose a significant risk for heat-related illnesses.

Residents should stay hydrated and limit prolonged outdoor exertion during the hottest parts of the day. Checking on elderly neighbors and ensuring pets have access to cool, shaded areas is also advisable as the heat builds.

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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