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5-day forecast / Plano, TX

TuesdaySunny101° / 81°
WednesdaySunny101° / 81° 1%
ThursdaySunny101° / 79°
FridaySunny101° / 81°
SaturdaySunny101° / 81°

Plano Heat and Humidity Persist With Highs Near 99 - Aug 9, 5 AM

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

Temperatures in Plano are climbing toward 99 degrees today with a heat index reaching 103. Dew points remain high at 72F, creating muggy conditions under clear skies.

Lena Zimmer

August 9, 20262 min read

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

*As of Aug 9, 5 AM local time.*

Current Conditions and Humidity

It is currently Sunday this morning in Plano, TX, where the air feels noticeably heavy due to elevated moisture levels. The current air temperature stands at 82F, but the combination of heat and humidity pushes the feels-like temperature up to 87F.

Relative humidity is sitting at 70%, with a dew point of 72F indicating quite humid conditions that make the morning feel warmer than the thermometer suggests. Winds are light from the south at 6 mph, with gusts reaching 14 mph, while the sky remains clear.

Forecast for Today and Tomorrow

The heat will intensify as the day progresses. Today is expected to be sunny with a high near 99F. The National Weather Service indicates that heat index values could climb as high as 103 during peak afternoon hours. A low of around 77F is forecast for tonight, though temperatures may rise slightly to around 79 overnight. South winds will continue at 5 to 10 mph.

Tomorrow brings little relief from the warmth. The sky will remain sunny with a high near 99F again. Heat index values are projected to reach 102. Overnight lows will settle around 81F, maintaining the muggy atmosphere. Winds on tomorrow will be around 10 mph from the south, with gusts potentially hitting 20 mph.

Safety and Alerts

There are no active National Weather Service or NOAA weather alerts in effect for this area at this time. However, the combination of high temperatures and significant humidity poses health risks. Residents should stay hydrated and limit midday exertion to avoid heat-related illness.

The heat index values exceeding 100 mean that the perceived temperature is dangerous for prolonged outdoor activity. Please check on neighbors who may be vulnerable to extreme heat and ensure pets have access to cool, shaded areas.

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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Lena Zimmer

Lena Zimmer covers weather, storms, and seasonal life around Plano.

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