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5-day forecast / Richardson, TX

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

Humidity Clings to Richardson as Temps Near 100 - Jul 1, 4 AM

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

Richardson faces a humid overnight with a dew point of 73F. Highs near 99F today and tomorrow bring heat index values up to 103F.

Reese Janssen

July 1, 20262 min read

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

As of Jul 1, 4 AM local time.

Current Conditions and Humidity

It is currently Wednesday overnight in Richardson, and the air feels heavy with moisture. The air temperature sits at 82F, but the heat index makes it feel like 88F. This discomfort is driven by a dew point of 73F and a relative humidity of 74%.

The sky is clear, offering no relief from the muggy conditions, while south winds blow at 10 mph with gusts reaching 16 mph.

Forecast for Today and Tomorrow

Residents should prepare for a hot and sunny day today. The high will reach near 99F, with the heat index climbing as high as 102F. South winds will persist around 10 mph, with gusts potentially hitting 20 mph. The chance of precipitation is minimal at just 3%. Temperatures will drop to a low near 79F tonight under mostly clear skies.

Tomorrow remains sunny with a high near 98F. While the actual air temperature will fall to around 96F in the afternoon, the heat index will soar to 103F. South southeast winds will be lighter, ranging from 5 to 10 mph.

The chance of rain increases slightly to 13% but remains low. Overnight, temperatures will settle near 79F before rising to around 81F later in the night under partly cloudy skies.

Safety and Alerts

There are no active National Weather Service or NOAA weather alerts for Richardson at this time. However, the combination of high temperatures and significant humidity requires caution. Heat index values exceeding 100F can lead to heat exhaustion or heat stroke with prolonged exposure.

It is critical to stay hydrated by drinking water frequently, even if you do not feel thirsty. Limit strenuous outdoor activities during the midday and afternoon hours when the sun is strongest. Wear lightweight, light-colored clothing and seek air-conditioned environments as often as possible.

Check on elderly neighbors or those without adequate cooling, as the humid heat can be dangerous for vulnerable populations. Stay aware of your body’s signals and seek medical attention immediately if you experience dizziness, nausea, or confusion.

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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