It’s undeniable that summer weather is upon us in South Texas. Historically speaking, the first week of June brings an average high temperature of 91 degrees to San Antonio. Unfortunately for us, this week’s temperatures are expected to be well above average as a mini heat wave moves over the southern half of the state.

Parts of South Texas will see triple-digit heat over the next few days, and the heat could even aide in sparking a few isolated thunderstorms. But do weather models show any relief coming anytime soon? Here’s a look at what we can expect.

Monday’s forecast

Thanks to warm, humid air and ample cloud cover across South Texas, a record warm start is possible on Monday. Morning low temps of 78-79 degrees are expected, which is likely to tie or break the record warm low of 78 degrees.

By the middle of the day, clouds are expected to break apart, allowing for some sunshine during the afternoon. Temperatures will steadily rise, reaching 90 degrees around noon. Afternoon high temperatures will likely top out near 97 degrees, 6 degrees above average for early June.

Dew points will be in the low to mid-70s, which will make for a very humid afternoon as well. Heat index values will rise to between 106 and 109 degrees. If you have to spend an extended period of time outdoors, be sure to stay properly hydrated and take frequent breaks from the heat.

By the late afternoon, the combination of high heat and moisture levels will contribute to a few, isolated thunderstorms. Storms will first develop west of San Antonio, near the Texas-Mexico border. During the evening, San Antonio will see a 20% chance of thunderstorms. The majority of areas will stay dry, though.

Increasing heat

As high pressure continues to move slowly closer, the heat will grow more intense during the middle of the week. From Tuesday through Thursday, San Antonio’s high temperatures are expected to reach 98-99 degrees, and heat index values will continue to be about 10 degrees hotter than the actual temperatures.

Many parts of South Texas, especially south and west of San Antonio, will experience multiple days of triple-digit heat. Cities such as Hondo, Uvalde, and Pearsall are expected to see temps rise to between 100 and 103 degrees. Farther southwest, Del Rio and Laredo will experience record high temps between 105 and 109 degrees.

Any relief coming?

The center of the high pressure system may drift slightly westward by the weekend, resulting in slightly “cooler” temperatures, as well as small storm chances. That being said, temperatures are not expected to fall by much. Highs are still expected to reach the mid-90s in the Alamo City.

Some weather models are hinting at a weak cold front potentially moving into Texas by early next week. This could provide more significant relief from the heat, but the timing and strength of the front is still uncertain. Stay updated with expressnews.com/weather for updates.