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5-day forecast / Richardson, TX

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

Humidity Peaks in Richardson as Heat Index Climbs to 107 - Jun 21, 8 AM

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

Richardson faces high humidity today with a dew point of 72F. Temperatures will rise to 92F, with heat index values reaching 103. Tomorrow brings a slight chance of storms and hotter conditions.

Reese Janssen

June 21, 20262 min read

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

As of Jun 21, 8 AM local time.

Current Conditions and Humidity

Residents in Richardson are experiencing notably muggy conditions this Sunday morning. The air temperature stands at 75F, but the feels-like temperature is 77F due to significant moisture in the air. The relative humidity is at 89%, with a dew point of 72F, creating a heavy, humid atmosphere.

Winds are currently blowing from the south southwest at 9 mph, with gusts reaching up to 26 mph. The sky remains clear at this hour.

Today and Tonight Forecast

Expect the heat to build significantly throughout the day. The high near 92F will be accompanied by heat index values as high as 103. The sky will be mostly sunny with a low chance of precipitation at 5%. Winds will continue from the south southwest at 10 to 15 mph, with gusts as high as 25 mph.

As evening approaches, conditions will remain warm and humid. The low will settle near 79F, with heat index values staying as high as 103. Skies will become partly cloudy. Winds will shift slightly to the south, maintaining speeds of 10 to 15 mph, with gusts potentially reaching 30 mph.

Tomorrow Outlook

Temperatures will climb further tomorrow, with a high near 96F. The heat index is expected to reach as high as 107, making it feel significantly hotter than the actual air temperature. There is a slight chance of showers and thunderstorms between 7am and 4pm, with a 22% chance of precipitation overall.

Skies will be partly sunny. Winds will remain from the south at 10 to 15 mph, with gusts up to 25 mph.

During tomorrow night, there is also a slight chance of showers and thunderstorms between 7pm and 1am. The low will be around 78F, with heat index values as high as 106. Winds will slow to around 10 mph, with gusts up to 20 mph. Skies will be partly cloudy.

Safety Reminder

With heat index values exceeding 100F, it is crucial to stay hydrated and limit prolonged outdoor exertion, especially during the midday hours. Check on neighbors who may be vulnerable to extreme heat. While there are no active weather alerts, be aware of the slight chance of storms tomorrow and plan accordingly.

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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