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5-day forecast / Prosper, TX

TuesdaySunny104° / 80° 1%
WednesdaySunny103° / 80°
ThursdaySunny99° / 80°
FridaySunny102° / 83°
SaturdayMostly Sunny101° / 83° 6%

Dangerous Heat Index Hits 101F in Prosper as Temperatures Climb - Jul 18, 4 PM

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

Prosper residents face dangerous heat today with a heat index of 101F. Conditions remain hot and humid through tomorrow with highs near 98F.

Opal Fields

July 18, 20261 min read

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

*As of Jul 18, 4 PM local time.*

Dangerous Heat Arrives in Prosper

Dangerous heat is currently affecting Prosper, TX, with the air temperature at 93F but a feels-like temperature of 101F. The atmosphere is quite humid, with a dew point of 72F and relative humidity at 50%. Winds are blowing from the south southwest at 14 mph, with gusts reaching 17 mph, under a clear sky.

Forecast for Today and Tomorrow

Today, the sun will be out for most of the day, with a high near 96F. The heat index is expected to reach as high as 102F. South southwest winds will continue around 15 mph. The chance of precipitation is minimal at 2%.

Tonight, skies will clear up, allowing temperatures to drop to a low around 78F. However, heat will linger, with the heat index staying as high as 101F. Overnight, temperatures may rise to around 80F. South winds will persist, ranging from 5 to 15 mph.

Tomorrow, the sun will shine brightly with a high near 98F. The heat index will climb to as high as 104F. South southwest winds will be lighter, between 5 to 10 mph. The chance of rain is very low at 3%.

Safety Reminders

Given the dangerous heat index values, it is crucial to stay hydrated and limit midday exertion. Check on neighbors, especially the elderly and those without air conditioning. Wear lightweight, light-colored clothing and seek air-conditioned spaces during the hottest parts of the day. There are no active weather alerts, but the heat itself poses a significant risk. Please take precautions to avoid heat-related illnesses.

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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Opal Fields covers weather, storms, and seasonal life around Prosper.

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