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5-day forecast / Frisco, TX

FridaySlight Chance Showers And Thunderstorms103° / 82° 10%
SaturdayMostly Sunny then Slight Chance Showers And Thunderstorms106° / 82° 13%
SundaySunny105° / 84° 5%
MondaySunny106° / 83° 3%
TuesdaySlight Chance Rain Showers then Sunny106° / 83° 15%

Frisco Heat Warning: Highs Near 103F, Air Quality Alert Active - Aug 21, 2 PM

Frisco weather, refreshed every four hours — local forecasts you can plan your day around.

An Extreme Heat Warning is in effect for Frisco. Current temperatures are 95F, with a high near 103F expected. An Air Quality Alert is also active. Stay hydrated and limit outdoor exertion.

Camille Rourke

August 21, 20262 min read

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

*As of Aug 21, 2 PM local time.*

Severe Heat Warning in Effect

An Extreme Heat Warning is currently active for the Frisco area, issued by the National Weather Service in Fort Worth. This severe alert remains in effect until early tomorrow evening. Residents should take immediate precautions against the intense heat.

Currently, the air temperature is 95F, but it feels like 98F due to the humidity. The sky is clear, with winds blowing at 13 mph and gusting to 20 mph. Relative humidity stands at 39%, and the dew point is 66F.

These conditions contribute to the dangerous heat index values expected throughout the day.

Today’s Forecast and Air Quality

Today will be sunny with a high near 103F. There is a slight chance of showers and thunderstorms before 4pm, with a 10% chance of precipitation. Heat index values could reach as high as 107F.

Winds will be from the south southwest around 5 mph. Tonight, partly cloudy skies will accompany a low around 82F. Heat index values may reach 104F, with south southeast winds between 5 and 10 mph.

Additionally, an Air Quality Alert is active, issued earlier this week. While the specific severity is not defined, residents with respiratory sensitivities should monitor their symptoms and limit prolonged outdoor exposure if possible.

Tomorrow’s Outlook and Safety

Tomorrow will be mostly sunny with a high near 106F. A slight chance of showers and thunderstorms is possible after 4pm, with a 13% chance of precipitation. Heat index values could climb to 108F.

Winds will be from the south southeast around 5 mph. Overnight, temperatures will remain warm, with lows around 82F rising to 84F. A slight chance of storms is possible before 10pm.

Given the sustained extreme heat, it is crucial to stay hydrated, limit midday exertion, and check on vulnerable neighbors. Avoid leaving pets or children in parked vehicles, as interior temperatures can rise rapidly in these conditions.

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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Camille Rourke

Camille Rourke covers community life, events, and neighborhood features around Frisco.

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