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5-day forecast / Plano, TX

SundayMostly Sunny then Chance Showers And Thunderstorms101° / 79° 28%
MondayMostly Sunny99° / 77° 14%
TuesdayMostly Sunny98° / 79° 14%
WednesdaySunny100° / 82° 4%
ThursdaySunny102° / 82°

Plano Heat Index Hits 100F Tonight; Scattered Storms Possible Tomorrow

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

Dangerous heat lingers in Plano this evening with a heat index near 100F. Temperatures will climb to 101F tomorrow with a chance of late-day showers and thunderstorms.

Lena Zimmer

July 5, 20262 min read

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

Dangerous Heat Lingers

Plano residents are facing dangerous heat conditions this Saturday evening. The current air temperature stands at 99F, but the heat index makes it feel like 100F. Relative humidity is at 31%, with a dew point of 63F. Winds are blowing from the south southeast at 6 mph, with gusts reaching up to 16 mph. The sky remains partly cloudy as the day winds down.

Temperatures today reached a high near 98F, with a low near 81F. There was a 12% chance of precipitation, with a slight chance of showers and thunderstorms earlier in the day before skies cleared to partly cloudy conditions.

Storms and Sweltering Tomorrow

Tonight, there is a slight chance of showers and thunderstorms before 7pm. Skies will be partly cloudy with a low around 81F. Temperatures may rise to around 83F overnight. Heat index values could reach as high as 104F. South southeast winds will persist at 5 to 10 mph.

Tomorrow, the heat will intensify with a high near 101F. The sky will be mostly sunny initially, followed by a chance of showers and thunderstorms after 4pm. The heat index is expected to climb to 106F. South southwest winds will be around 5 mph. The chance of precipitation is 28%, though the official forecast notes a 30% chance. A low near 79F is expected, with temperatures rising to around 81F overnight. Heat index values may reach 103F. South southeast winds will remain around 5 mph. There is a chance of showers and thunderstorms before 7pm, then a slight chance between 7pm and 1am. Skies will be partly cloudy.

Safety Reminders

With heat index values exceeding 100F, it is critical to stay hydrated and limit midday exertion. Check on neighbors, especially the elderly and those without air conditioning. If storms develop, seek shelter indoors immediately. There are no active National Weather Service alerts at this time.

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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