Discover what tomorrow holds with our detailed forecast for Austin and the Southern Plains. Sunny mornings in Austin with potential storms around the corner!

Welcome to your complete guide for Austin’s weather on 09/25/2025. The city wakes to a beautiful sunny morning while temperatures swiftly climb to 77°F by mid-morning. However, the tranquility in Austin contrasts with burgeoning storms across the Southern Plains, where cities like Corpus Christi and Oklahoma City may experience heavy downpours and severe weather warnings. Stay prepared with all the weather details in our comprehensive blog post.
Across the Southern Plains, the regional radar shows active weather primarily in the eastern areas. A band of heavy rain is sweeping through Corpus Christi, extending toward New Orleans, signaling incoming showers for these coastal areas. Meanwhile, lighter showers are pushing into San Antonio and Midland from the southwest. The rest of the region, including Dallas and Oklahoma City, remains relatively dry and clear at this time.
For tomorrow morning in Austin, expect sunny skies with calm winds, creating a serene start to the day. Temperatures will rise from 67 degrees at 8 AM to 77 degrees by 10 AM, warming up swiftly with the bright sunshine. It’s a clear and pleasant setup, making it ideal for morning activities outdoors.
Tomorrow in the Southern Plains, expect a warm day with highs reaching 86 degrees in El Paso and 91 in Midland. Dallas will see a high of 89, while San Antonio peaks at a scorching 95 degrees. Oklahoma City is also on the warmer side, forecasted to hit 87 degrees. Corpus Christi stands out at 91 degrees, making for a balmy day along the coast. These temperatures are notably above average for this time of year, influenced by a high pressure system settling over the region.
Watch out for an active weather pattern across the Southern Plains tomorrow. Early rain spreads from Dallas to Corpus Christi, offering relief with needed moisture. Oklahoma City may face stronger storms due to an unstable air mass and an advancing cold front. Be prepared for potential severe weather warnings through Wednesday night, particularly in southeastern areas. After the storm system passes, expect cooler temperatures as the front moves southward.
The UV index in Austin today will be very high with a quick burn time of just 15 minutes, so be sure to protect your skin if you’re outside. Tomorrow, expect a UV index that’s slightly lower, with burn times around 17 minutes.
For the 7-day forecast in Austin: Friday: Enjoy sunny skies with a high of 93 degrees and a low of 63 degrees. Saturday: Continuing with sun, reaching 93 degrees for the high and dipping to 63 degrees at night. Sunday: Partly cloudy with a daytime high of 91 degrees and a low of 64 degrees. Monday: Clouds linger as temperatures peak at 90 degrees and drop to 65 degrees overnight. Tuesday: The sun returns with a high of 93 degrees and a low of 65 degrees. Wednesday: Expect sunny skies with a high of 95 degrees and a low of 67 degrees. Thursday: Another warm and sunny day, with highs reaching 95 degrees and a low of 69 degrees.