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5-day forecast / Prosper, TX

WednesdaySunny104° / 81°
ThursdaySunny104° / 81° 2%
FridaySunny103° / 80° 4%
SaturdaySunny103° / 80° 3%
SundaySunny103° / 81° 2%

Extreme Heat Warning in Effect for Prosper as Temperatures Soar - Aug 18, 5 PM

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

An Extreme Heat Warning is active for Prosper, TX, with dangerous heat index values reaching up to 107 degrees. Current conditions show an air temperature of 102F.

Opal Fields

August 18, 20262 min read

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

*As of Aug 18, 5 PM local time.*

Dangerous Heat Conditions

A severe Extreme Heat Warning is currently in effect for Prosper, Texas, signaling dangerous heat conditions that require immediate caution. As of this Tuesday evening, the air temperature stands at 102F, but the combination of heat and humidity makes it feel like 105F. The relative humidity is at 28%, with a dew point of 63F.

Winds are blowing from the south southwest at 13 mph, with gusts reaching 13 mph, under clear skies.

The National Weather Service has issued this warning due to the intense heat that will persist through the region. Residents should be aware that the heat index values are expected to climb significantly higher than the actual air temperature, creating hazardous conditions for anyone spending time outdoors.

Forecast and Safety Guidance

Today remains sunny with a high near 104F and a low near 81F. There is no chance of precipitation. The heat index is forecast to reach as high as 106 during the day.

Tonight, skies will clear, with temperatures dropping to a low around 81F, though they may rise to around 84 overnight. Winds will shift to the south at 5 to 10 mph, and the heat index could still feel as high as 106.

Tomorrow follows a similar pattern with sunny skies and a high near 104F. The heat index is expected to peak at 107, making it even more dangerous than today. Winds will be from the south southwest around 10 mph.

Temperatures will drop to a low near 81F tomorrow night, with skies becoming mostly clear. Overnight temperatures may rise to around 83, and the heat index could reach 106 again.

Given the severity of this warning, it is critical to stay hydrated and limit midday exertion. Check on elderly neighbors or those without air conditioning, as the heat poses serious health risks. Avoid prolonged exposure to the sun during peak hours and seek air-conditioned environments whenever possible.

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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