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5-day forecast / Prosper, TX

TuesdaySunny103° / 82° 1%
WednesdaySunny103° / 81° 1%
ThursdaySunny100° / 80° 1%
FridaySunny101° / 83°
SaturdayMostly Sunny101° / 82° 7%

Heat Advisory in Effect for Prosper as Temperatures Climb Near 100 - Jul 20, 8 AM

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

A Heat Advisory is active for Prosper, TX, with current feels-like temperatures at 85F. Highs near 100F today and 103F tomorrow bring extreme heat and high humidity.

Opal Fields

July 20, 20262 min read

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

*As of Jul 20, 8 AM local time.*

Current Conditions and Alert Status

A Heat Advisory is currently in effect for Prosper, Texas, signaling dangerous heat levels that require caution. As of this Monday morning, the air temperature stands at 81F, but the combination of heat and moisture makes it feel like 85F. The atmosphere is quite humid, with a dew point of 73F and relative humidity holding at 79%.

Winds are light from the southwest at 5 mph, with occasional gusts reaching 16 mph, while the sky remains clear.

The National Weather Service has issued this advisory with moderate severity and expected urgency. It is active from July 19 at 11:05PM CDT until July 20 at 8:00PM CDT. This alert underscores the need for residents to monitor conditions closely as the heat builds throughout the day.

Forecast for Today and Tomorrow

Today, Prosper will see sunny skies with a high near 100F. The heat index is expected to reach as high as 107, making it feel significantly hotter than the actual air temperature. Southwest winds will remain around 5 mph.

Overnight, conditions will clear with a low around 79F. Temperatures will rise to around 81F during the night, with the heat index peaking at 105. South southwest winds will continue at approximately 5 mph.

Tomorrow, the heat will intensify further. Sunny skies will persist with a high near 103F. The heat index is forecast to climb to 108, creating hazardous conditions for prolonged outdoor exposure.

West southwest winds will stay near 5 mph. Tomorrow night will be clear with a low around 82F. Temperatures will rise to around 84F overnight, with the heat index reaching 107.

South winds will remain around 5 mph.

Safety Reminders

Given the active Heat Advisory and extreme heat index values, it is critical to prioritize safety. Hydrate frequently and limit midday exertion to avoid heat-related illnesses. Check on neighbors, especially the elderly and those without air conditioning, to ensure they are safe. Wear lightweight, light-colored clothing and seek air-conditioned environments during the peak heat hours of the day.

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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