Frisco Heat Index Nears 100 Today; Hotter 95F High Expected Tomorrow - Jun 20, 4 PM
Frisco weather, refreshed every four hours — local forecasts you can plan your day around.
Frisco residents face a humid, hot Saturday with a heat index near 99F. Temperatures will climb to 95F tomorrow with a heat index reaching 107F.
Camille Rourke
June 20, 2026/2 min read
National Weather Service radar for North Texas (KFWS)
As of Jun 20, 4 PM local time.
Current Conditions and Heat Index
Frisco is experiencing a notably hot and humid afternoon on Saturday. The air temperature currently stands at 90F, but the combination of heat and moisture pushes the feels-like temperature to 96F. Relative humidity is at 56%, with a dew point of 72F indicating significant moisture in the air.
Winds are light at 3 mph with gusts up to 5 mph, and the sky is mostly cloudy.
Today and Tonight Forecast
The National Weather Service forecasts a high near 89F today under mostly sunny skies. Despite the high remaining near 89F, heat index values will reach as high as 99F. Southeast winds will be around 5 mph.
As evening approaches, skies will clear to mostly clear conditions. Temperatures will drop to a low around 76F, though they may rise slightly to around 78F overnight. The heat index will remain elevated at 99F.
Winds will shift to south southeast at around 10 mph, with gusts reaching 20 mph.
Tomorrow and Safety Reminders
Conditions will intensify tomorrow with sunny skies and a high near 95F. The heat index is expected to soar to 107F. South winds will increase to 15 to 20 mph, with gusts as high as 30 mph.
Tomorrow night, there is a chance of showers and thunderstorms after 4am. Skies will be partly cloudy with a low around 79F, rising to 81F overnight. The heat index will be 105F, with south winds continuing at 15 to 20 mph and gusts up to 30 mph.
The chance of precipitation is 30%, with less than a tenth of an inch of rain possible.
There are no active National Weather Service alerts in effect for this area. However, the extreme heat and humidity require caution. Residents should stay hydrated and limit time spent outdoors during the hottest parts of the day. Check on neighbors and vulnerable individuals to ensure they are safe in the rising temperatures.
National Weather Service radar for North Texas (KFWS)
A Heat Advisory is active for Frisco as temperatures reach 95F. Today will be sunny with a high near 100F. Tomorrow brings a chance of showers and thunderstorms after 1pm.
A Heat Advisory is active for Frisco as air temperatures hit 100F and heat index values reach 106F. Sunny skies and low humidity will persist through tomorrow, with lows remaining near 80F.
A Heat Advisory is active for Frisco as temperatures hover near 100 degrees. Residents should stay hydrated and limit outdoor exertion during peak afternoon hours.
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