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5-day forecast / Richardson, TX

SaturdaySunny105° / 84° 4%
SundayMostly Sunny107° / 86° 6%
MondaySunny108° / 84° 3%
TuesdaySunny107° / 84° 4%
WednesdayMostly Sunny104° / 81° 13%

Extreme Heat Warning and Air Quality Alert in Effect for Richardson - Aug 21, 2 PM

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

Richardson residents face an Extreme Heat Warning with highs near 105F and an Air Quality Alert. Current conditions are hot and clear, with slight chances of storms later.

Reese Janssen

August 21, 20262 min read

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

*As of Aug 21, 2 PM local time.*

Active Alerts and Current Conditions

An Extreme Heat Warning is currently in effect for Richardson, Texas, signaling severe heat risks that require caution. Additionally, an Air Quality Alert has been issued, indicating potential concerns with local air quality levels. These alerts are active simultaneously as the region experiences significant warmth.

Right now, the air temperature stands at 95F, but the heat index makes it feel like 98F. The sky is clear, and relative humidity is at 39% with a dew point of 66F. Winds are blowing from the south at 13 mph, with gusts reaching up to 20 mph.

Forecast for Today and Tonight

Today, temperatures will climb to a high near 105F. The National Weather Service indicates a slight chance of showers and thunderstorms before 4pm. Heat index values are expected to reach as high as 108 during the day. Winds will shift to the south around 5 mph.

Tonight, skies will become partly cloudy with a low near 82F. Temperatures may rise slightly overnight to around 84F. The heat index could remain elevated at 106. South southeast winds will persist at 5 to 10 mph. There is a 10% chance of precipitation overall for the day.

Tomorrow’s Outlook

Tomorrow, conditions will remain hot with a high near 106F and a low near 82F. The sky will be mostly sunny initially, followed by a slight chance of showers and thunderstorms after 4pm. Heat index values are forecast to hit 108 again. South winds will continue at 5 to 10 mph.

Temperatures may fall slightly in the afternoon to around 104F before rising overnight toward 85F. The chance of precipitation for tomorrow is 13%. A slight chance of showers and thunderstorms is also possible before 10pm, with a 20% chance overall for that period.

Safety Reminders

Given the Extreme Heat Warning, residents should hydrate frequently and limit midday exertion. The combination of high temperatures and humidity can lead to heat-related illnesses quickly. Additionally, due to the Air Quality Alert, individuals with respiratory conditions should monitor their symptoms and consider limiting prolonged outdoor activity. Check on neighbors who may be vulnerable to extreme heat.

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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