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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 Storms Linger - Jul 12, 8 AM

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

Oppressive humidity with a dew point of 77F sets the tone for Richardson today. Scattered showers and thunderstorms are likely both today and tomorrow, with heat indices reaching 99F.

Reese Janssen

July 12, 20262 min read

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

*As of Jul 12, 8 AM local time.*

Oppressive Humidity and Storm Potential

The air in Richardson feels heavy this morning, with a dew point of 77F creating an oppressively humid environment. Relative humidity sits at 89%, making the current air temperature of 81F feel like 87F. Winds are light, blowing from the south southwest at 8 mph with gusts up to 10 mph, while the sky remains cloudy.

Today, temperatures will climb to a high near 94F. The heat index is expected to reach as high as 99F, intensifying the discomfort. There is a 50% chance of showers and thunderstorms throughout the day. New rainfall amounts less than a tenth of an inch are possible. Winds will shift to the south southwest around 5 mph.

Tonight, conditions will remain mostly cloudy with a low near 75F. Temperatures may rise to around 77F overnight. The chance of showers and thunderstorms remains at 50%, with new rainfall amounts between a tenth and quarter of an inch possible. Heat index values could reach 97F. Winds will be light, from the southeast at 0 to 5 mph.

Tomorrow’s Forecast

Tomorrow, the pattern continues with a high near 91F and a low near 74F. The chance of precipitation is 51%, with showers and thunderstorms likely. Rain is expected before 7am, then again between 7am and 1pm, continuing as a chance for the rest of the day.

New rainfall amounts between a tenth and quarter of an inch are possible. Heat index values will again reach as high as 99F. Winds will be from the south southeast at 0 to 5 mph.

Tomorrow night, there is a chance of showers and thunderstorms before 1am. Conditions will be partly cloudy with a low around 74F, rising to 76F overnight. The chance of precipitation drops slightly to 40%, with rainfall amounts between a tenth and quarter of an inch possible. Heat index values may reach 97F.

Safety Reminder

With heat indices nearing 99F and high humidity, stay hydrated and limit midday exertion. Check on neighbors, especially the elderly or those without air conditioning. While there are no active weather alerts, be prepared for sudden changes in weather conditions.

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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