Residents of McKinney can expect hot and humid weather for the Fourth of July, with temperatures projected to peak at 97 degrees. This forecast is slightly above the seasonal average but significantly lower than the record highs recorded in 1980. The morning will see temperatures quickly rise through the 80s, reaching the low 90s by noon, before hitting the mid-to-upper 90s later in the day.
A weak atmospheric disturbance is anticipated to bring a slight chance of rain, with a 10% probability for the immediate Dallas-Fort Worth metroplex and a 20% chance for areas to the east. Any afternoon thunderstorms that develop may bring localized heavy rain, lightning, and gusty winds; however, severe weather is not expected.
Winds will be from the south at 10 to 15 mph, with occasional gusts up to 20 mph.
The weather pattern for Friday, July 4th, is expected to mirror that of Thursday. Morning temperatures will start in the mid-to-upper 70s and rise into the mid-to-upper 90s under partly sunny skies.
Isolated thunderstorms are likely to form late in the afternoon, particularly between 4 p.m. and 6 p.m., but these should dissipate by 8 p.m. to 9 p.m., allowing for favorable conditions for evening fireworks.
Looking ahead to the weekend, the likelihood of a significant rain event is low, though brief interruptions to outdoor activities may occur. Isolated showers and thunderstorms are expected to develop during the late afternoon and early evening hours, typical for summer weather patterns, before fading after sunset.
