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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, 4 AM

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

An Extreme Heat Warning is in effect for Plano, TX, with today's high near 104F and heat index values reaching 112F. 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, 4 AM local time.*

Severe Heat Alert Active

An Extreme Heat Warning is currently in effect for Plano, Texas, signaling dangerous conditions that require immediate attention. The National Weather Service has issued this severe alert due to the potential for life-threatening heat. The warning remains active until the evening hours, covering the most intense part of the day.

Residents should be aware that this is not a standard heat advisory but a severe warning indicating significant risk to health and safety.

Current Conditions and Forecast

Right now, the air temperature stands at 86F, with a feels-like temperature of 89F. The relative humidity is at 55%, and the dew point is 68F. Winds are blowing from the south southwest at around 5 mph, with gusts reaching 11 mph. The sky is clear, offering no relief from the sun.

Today, the high will reach near 104F, with a low near 82F. The chance of precipitation is just 1%, and skies will remain sunny. Heat index values are expected to climb as high as 112F.

Winds will be from the west around 5 mph. Tonight, conditions will be mostly clear, with a low around 84F. Temperatures may rise to around 87F overnight.

The heat index will remain high at 110F, with south winds of 0 to 5 mph.

Tomorrow, the high will be near 103F, with a low near 81F. There is a 0% chance of precipitation, and the sky will be sunny. Heat index values will peak at 111F.

Winds will shift to the north northeast at 5 to 10 mph. Tomorrow night, skies will be mostly clear, with a low around 81F. Temperatures may rise to around 83F overnight, with east winds of 5 to 10 mph.

Safety Reminders

Given the severe heat warning, it is critical to stay hydrated and limit midday exertion. Seek air-conditioned environments as much as possible. Check on neighbors, especially the elderly and those without adequate cooling.

Never leave people or pets in parked vehicles. The heat index values exceeding 110F pose a serious risk of heat exhaustion and heat stroke. Please take this warning seriously and plan your activities accordingly to avoid the peak heat hours.

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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