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5-day forecast / Richardson, TX

FridayMostly Sunny92° / 73°
SaturdayPartly Sunny94° / 75° 2%
SundaySlight Chance Rain Showers96° / 77° 20%
MondaySunny97° / 77° 12%
TuesdayChance Showers And Thunderstorms95° / 76° 11%

Heat Advisory in Effect for Richardson as Temperatures Climb Near 100 - Aug 11, 1 PM

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

A Heat Advisory is active for Richardson, TX, with highs near 99F today and 100F tomorrow. Heat index values will reach 104F. Stay cool and hydrated.

Reese Janssen

August 11, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Aug 11, 1 PM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Richardson, Texas, signaling moderate severity and expected urgency. The National Weather Service has issued this alert to warn residents of dangerously high heat index values. As of this afternoon, the air temperature stands at 90F, with a feels-like temperature of 91F.

The sky remains clear, and relative humidity is at 43%, with a dew point of 64F. Winds are blowing from the south southwest at 10 mph, with gusts reaching up to 18 mph.

Today and Tonight Forecast

Today will be sunny with a high near 99F. The heat index values are expected to reach as high as 104F. Overnight, conditions will become mostly clear, with a low around 80F.

Temperatures may rise to around 82F during the night. The heat index will remain elevated, reaching up to 103F. Winds will continue from the south at around 10 mph, with gusts as high as 20 mph.

The chance of precipitation is minimal at 1% today.

Tomorrow Outlook

Tomorrow will also be sunny, with a high near 100F. The heat index values are forecast to reach 104F. Winds will shift to the south at 10 to 15 mph, with gusts as high as 25 mph.

The chance of precipitation is 0%. Tomorrow night will be clear, with a low around 81F. The heat index will drop slightly but remain high at 102F.

Winds will persist from the south at 10 to 15 mph, with gusts up to 25 mph.

Safety Reminder

Given the active Heat Advisory, it is crucial 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. Keep vehicles parked in the shade and never leave pets or people in closed cars.

Use fans and cool showers to help lower body temperature. Stay safe and avoid the midday sun as much as possible.

National Weather Service radar for North Texas (KFWS)

Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data

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Reese Janssen

Reese Janssen covers weather, storms, and seasonal life around Richardson.

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