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5-day forecast / Plano, TX

SaturdayMostly Cloudy then Slight Chance Rain Showers61° / 47° 15%
SundayRain Showers51° / 44° 100%
MondayPartly Sunny57° / 45° 4%
TuesdaySunny64° / 48°
WednesdayMostly Sunny68° / 58° 1%

Plano Under Extreme Heat Warning as Temperatures Soar Near 104F - Jul 21, 12 PM

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

An active Extreme Heat Warning is in effect for Plano, TX, with current feels-like temperatures at 96F and highs near 104F today. Residents are urged to take precautions against severe heat.

Lena Zimmer· AI-assisted, edited by Jake Team

July 21, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Jul 21, 12 PM local time.*

Severe Heat Alert Active

Plano, TX is currently under an active Extreme Heat Warning, designated as severe in urgency. This alert remains in effect until the evening hours, signaling dangerous conditions for anyone outdoors. The National Weather Service has issued this warning due to the extreme heat index values expected to reach as high as 112 degrees today.

The current atmospheric conditions are already intense, with the air temperature sitting at 95F and a feels-like temperature of 96F. The sky is clear, and winds are light at 6 mph with gusts to 6 mph. Relative humidity is at 34%, with a dew point of 63F.

Forecast Details for Today and Tomorrow

Today, the sun will remain out with a high near 104F. The heat index is projected to climb to 112. Winds will be from the west around 5 mph.

Tonight, skies will become mostly clear, with a low around 84F. Temperatures may rise to around 87F overnight, keeping the heat index as high as 110. Winds will shift to the south at 0 to 5 mph.

Tomorrow, the heat will persist with sunny skies and a high near 103F. The heat index is expected to reach 111. Winds will turn to the north northeast at 5 to 10 mph.

Tomorrow night, conditions will be mostly clear with a low around 81F. Temperatures may rise to around 83F overnight, with the heat index as high as 108. Winds will be from the east at 5 to 10 mph.

The chance of precipitation is minimal, at 1% today and 0% tomorrow.

Safety Reminders

Given the severe nature of this heat warning, it is critical to stay hydrated and limit midday exertion. Check on neighbors, especially the elderly and those without air conditioning. Avoid prolonged exposure to the sun and seek air-conditioned environments whenever possible. The heat index values exceeding 110 degrees pose a significant risk to health, so please take these warnings seriously and plan your activities accordingly.

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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Lena Zimmer· AI-assisted, edited by Jake Team

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

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