Isolated to scattered showers and thunderstorms may drift southeast out of Oklahoma this morning, gradually spreading southward into the afternoon. The highest rain chances are expected near the Red River, though severe weather is not anticipated. Rain coverage will taper off later in the day, with any lingering activity diminishing by this evening.

Across Central Texas, including the Austin and San Antonio areas, temperatures will remain slightly above average, with highs ranging from the mid-80s to mid-90s. Isolated afternoon showers and thunderstorms are possible, primarily east of the I-35 corridor. Winds will be out of the south at 5 to 10 mph, contributing to a warm and humid feel.

Looking ahead, the weather pattern becomes more active late this weekend into early next week. Daily rain chances begin Sunday, with the potential for cooler temperatures following a mid to late-week cold front. However, there remains uncertainty regarding the timing and strength of this front, which could impact the forecast for the latter half of the week.

Nationally, lingering moisture from former Tropical Storm Mario continues to bring heavy rain and a flash flood risk to parts of California, the Great Basin, and the Southwest. The central Sierra Nevada faces a heightened threat due to upslope flow enhancing rainfall totals. Storm activity is expected to shift northward into the central Rockies by Saturday, with lighter rainfall amounts.

Meanwhile, an upper-level trough over the central U.S. will support scattered to widespread thunderstorms across the Midwest, Mississippi Valley, and central/southern Plains through the weekend. Some storms may produce locally heavy rainfall and isolated flash flooding, particularly from the Upper Mississippi Valley to the Ozarks.

In the eastern U.S., summer’s final weekend will be marked by much above-average temperatures. Highs in the upper 80s to mid-90s are forecast from the Mid-Atlantic through the Ohio and Tennessee Valleys, with some areas running 10 to 15 degrees above seasonal norms. Cooler conditions will settle in behind a sagging cold front, bringing highs in the 60s and 70s to parts of New England and the Interior Northeast.

Out West, temperatures will remain below average across California and the Great Basin due to lingering precipitation and cloud cover. The Pacific Northwest and northern Rockies will experience warmer-than-normal conditions, with highs in the upper 70s to mid-80s.

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