Hot temperatures and humid conditions will produce elevated Heat Index values today. High temperatures for many areas will be near records for June 23rd, ranging from the mid 90s along the Highway 77 corridor to near 110 along the Rio Grande. Heat index values of 106 to 114 are expected across most of South Central Texas where a Heat Advisory is in effect from 1 PM to 8 PM. A slightly less humid airmass over Hill Country will keep Heat Index Values in the 100 to 105 range. Otherwise, mostly sunny skies will prevail today.
Hot and humid conditions will continue for much of the evening. Areas north of a line from Amistad Reservoir to Austin and east of a line from Austin to Hallettsville have a chance to see some late evening over early morning Thunderstorms as a weak cold front approaches Central Texas late tonight. Skies should be mostly clear in the evening, then turning mostly cloudy over most areas late tonight.
Scattered showers and thunderstorms are expected this weekend as a weak front and residual outflow boundaries interact with tropical moisture. Temperatures will be a few degrees below normal as well with winds out of the north-northeast at 5-10 miles per hour. The cooler temperatures and rain chances should continue into Monday before southerly flow returns for Tuesday and Wednesday to begin a gradual decrease in rain chances and increase in temperatures.
With heat indices climbing into the triple digits today, remember to stay safe when outdoors! Make sure you remain hydrated, wear plenty of sunscreen and wear light clothing.
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