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5-day forecast / Prosper, TX

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

Prosper Weather: Heat Index Hits 99F With Scattered Storms - Jul 12, 12 PM

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

Prosper, TX faces a very hot Sunday with a heat index near 99F. Scattered showers and thunderstorms are likely today and tomorrow, with no active weather alerts in effect.

Opal Fields

July 12, 20262 min read

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

*As of Jul 12, 12 PM local time.*

Current Conditions and Heat

It is currently Sunday this afternoon in Prosper, Texas, where the air temperature stands at 90F. The heat index is making it feel significantly warmer, at 96F. Relative humidity is at 56%, with a dew point of 72F, indicating quite humid conditions. The sky is mostly cloudy, and winds are blowing at 9 mph with gusts reaching 6 mph.

Today and Tonight Forecast

Today, the high will reach near 93F. Temperatures are expected to fall to around 91F in the afternoon. The heat index values will climb as high as 99F. There is a chance of showers and thunderstorms, with a 52% probability of precipitation. New rainfall amounts between a tenth and quarter of an inch are possible. South winds will be around 5 mph.

Tonight, the low will drop to near 74F, with temperatures rising to around 76F overnight. The sky will be mostly cloudy. A chance of showers and thunderstorms remains, with a 50% chance of precipitation. Rainfall totals between a tenth and quarter of an inch are possible. East southeast winds will be light, ranging from 0 to 5 mph.

Tomorrow Outlook

Tomorrow, the high will be near 90F, falling to around 88F in the afternoon. The heat index will again reach as high as 99F. There is a chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, followed by a continued chance of showers and thunderstorms.

The sky will be partly sunny. The chance of precipitation is 50%, with new rainfall amounts between a tenth and quarter of an inch possible. East southeast winds will remain light at 0 to 5 mph.

Safety and Alerts

There are no active National Weather Service or NOAA weather alerts in effect for this area. However, the combination of high temperatures and humidity requires caution. Residents should hydrate frequently and limit midday exertion to avoid heat-related illness. Keep an eye on the sky for developing storms, as scattered thunderstorms are likely to bring brief heavy rain and lightning.

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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