As Central Texas settles into mid-September, the region continues to ride a wave of seasonably hot weather, with no signs of cooling off just yet. Morning lows in the 60s and 70s offer a brief reprieve before temperatures climb into the lower to mid 90s by afternoon. While humidity will be present, heat index values are expected to remain close to actual temperatures—meaning it’ll feel hot, but not oppressively so.

KNCT Meteorologist Bill Hecke reports that Saturday begins with mostly clear skies and a few scattered clouds. A light southern breeze accompanies morning temperatures in the 60s, but the heat builds quickly. By midday, expect mostly sunny to partly cloudy skies and highs in the 90s. Outdoor enthusiasts are encouraged to take advantage of the cooler morning hours, as the afternoon sun will demand caution: stay hydrated, take breaks, and always check the back seat before leaving your vehicle.

Across the Austin and San Antonio corridor, skies will be mostly sunny, with partly cloudy conditions expected westward near the Rio Grande and southern Edwards Plateau. Highs will range from the mid 80s to mid 90s, continuing the trend of above-average warmth for this time of year.

The forecast for the upcoming week remains consistent: highs in the lower 90s and lows in the mid 60s to low 70s. Rain chances are minimal, though a slight possibility of storms may emerge on Thursday as an upper-level disturbance passes overhead. Otherwise, dry and warm conditions will dominate the forecast period.

According to the National Weather Service’s Short Range Public Discussion, rounds of thunderstorms will continue over the Southern Rockies, High Plains, and South Florida, bringing the potential for scattered flash flooding and severe weather. These storms are developing around an upper-level omega-blocking pattern centered over the mid-section of the country.

Farther west, the Four Corners region and northern High Plains may see expanding thunderstorm coverage, with risks of hail, severe winds, and localized flooding. By Sunday, the system is expected to shift eastward, continuing the threat across the High Plains.

Meanwhile, the Intermountain West will experience a cool-down, with daytime highs 10–15 degrees below normal, generally in the 70s and 80s. In stark contrast, the Midwest and Northeast will bake under above-average temperatures, with highs reaching the mid to upper 90s. The latest HeatRisk guidance warns that this heat could pose risks to those without access to cooling or hydration.

In the Pacific Northwest, another round of rain and embedded thunderstorms is forecast to arrive Sunday, with a cold front pushing inland and spreading precipitation into northern Idaho and western Montana by Monday morning.

With prolonged exposure to high temperatures, it’s important to:

• Drink plenty of water—even if you don’t feel thirsty.
• Wear light, breathable clothing.
• Take frequent shade or indoor breaks.
• Keep an eye on vulnerable individuals, including children and pets.
• Always check the back seat before locking your car.

Whether you’re enjoying the sunshine in Central Texas or bracing for storms in the Rockies, staying weather-aware is key to a safe and enjoyable weekend.