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5-day forecast / Richardson, TX

WednesdaySunny104° / 82°
ThursdaySunny104° / 82° 1%
FridaySunny104° / 81° 4%
SaturdaySunny104° / 81° 3%
SundaySunny104° / 82° 1%

Extreme Heat Warning in Effect for Richardson as Temperatures Hit 104F - Aug 18, 5 PM

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

An Extreme Heat Warning is active for Richardson, TX, with current temperatures at 104F and heat index values reaching 106F. Residents are urged to take precautions against dangerous heat.

Reese Janssen

August 18, 20262 min read

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

*As of Aug 18, 5 PM local time.*

Dangerous Heat Conditions Underway

Richardson, TX, is currently under an Active NWS alert: Extreme Heat Warning (severity Severe). The National Weather Service has issued this warning due to dangerously high temperatures that pose significant risks to public health and safety. As of this evening, the air temperature stands at 104F, with a feels-like temperature of 103F.

Relative humidity is at 20%, and the dew point is 55F. Winds are blowing from the south at 7 mph, with gusts reaching up to 18 mph. The sky remains clear.

The official forecast indicates that heat index values will reach as high as 106F today. This means the air feels hotter than the actual temperature due to humidity levels, even though the current relative humidity is relatively low.

The National Weather Service in Fort Worth TX issued this warning on August 18 at 12:17PM CDT, and it remains in effect until August 19 at 8:00PM CDT.

Forecast for Today and Tomorrow

Today, conditions are expected to be sunny with a high near 104F. The low will drop to around 82F later in the evening. There is only a 1% chance of precipitation.

Tonight, skies will clear out, with temperatures falling to a low around 82F. However, temperatures may rise slightly to around 84F overnight. Heat index values could still reach as high as 105F.

South winds will persist at around 10 mph.

Tomorrow, the pattern continues with sunny skies and a high near 104F. The low will again be near 82F. Precipitation chances drop to 0%.

Heat index values are forecast to hit 106F once more. South southwest winds will continue at around 10 mph. Tomorrow night, skies will become mostly clear, with a low around 82F and temperatures rising to around 84F overnight.

Heat index values may reach 105F, with south southwest winds around 10 mph.

Safety Reminder

Given the Extreme Heat Warning, it is critical to stay hydrated and limit outdoor exertion during the hottest parts of the day. Check on neighbors, especially the elderly and those without air conditioning. Avoid direct sun exposure as much as possible.

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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