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Weather Forecast

The ERCOT Weather Forecast is developed by ERCOT Meteorologists Chris Coleman, Mia Montgomery, Brandon Gale, and Christi Eastham. The interactive map displays today’s temperature information for major cities located within the ERCOT grid. Hover over a city to see the most recent temperature forecast. 


Note: A Weather Zone is a geographic region designated by ERCOT in which climatological characteristics are similar for all areas within such region. This map displays the various Weather Zones that exist within the ERCOT footprint, but it does not necessarily include all counties that have participation within the ERCOT market.



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Weather Forecast Details


General Discussion:
Continued mild-to-warm temperatures across the ERCOT Region into Saturday. A strong cold front is poised to move through most of the state Saturday night (South Texas during the first half of the day on Sunday). Still some uncertainty with how quickly the colder temperatures will filter through the state behind the front on Sunday. Colder Sunday night, with most ERCOT locations expected to experience their coldest lows Monday morning (many West Texas locations will peak Sunday morning). Lows Monday morning will range between the mid-20s and mid-30s for most of the state (40s in South Texas). Temperatures will rapidly trend warmer beginning the middle of next week, with an extended period of above-normal temperatures expected to continue through Christmas. Texas should experience highs in the 70s and 80s during this period, with humidity increasing into Christmas week. Rain chances will remain limited, with mostly light amounts. South, Coast, and East zones will have the most rain opportunities in relation to the rest of the state. No frozen precipitation is expected. 

Today:
Abundant fog away from North and West Texas this morning. How quickly the fog burns off will dictate temperatures this afternoon. 60s and 70s are expected this afternoon, but any locations that hold onto fog and low cloud cover longer will fall short of the forecasted highs. Mid-80s in the Rio Grande Valley this afternoon. Could see a few showers pop up in the Coast zone late this afternoon toward evening. 30s and 40s tonight over North and West Texas, 50s and 60s over the rest of the state. 

This Weekend:
Relatively warm on Saturday. Highs will be in the 60s and 70s again, with 80s in the Rio Grande Valley. There will be some scattered, light rain showers in the East, Coast, South Central, and South zones during the day on Saturday, but generally minor impacts. Rain coverage may be a bit greater along the front Saturday night into Sunday. Look for rain chances before daybreak on Sunday stretching between Austin and Houston. Rain chances will shift to South Texas between mid-morning and late-afternoon before diminishing. Temperatures will trend much colder behind the front Saturday night into Sunday. Most locations will see their high temperature for the day before daybreak, and the low temperature at the end of the period on Sunday. 

Forecaster: CC

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Low and high temperatures forecast for the next seven days for major cities within the ERCOT system.
Dec 12, 2025 - pdf - 250.9 KB
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ERCOT’s assessment of the potential for load, wind, and solar conditions to vary between forecasts and actuals.
Dec 12, 2025 - pdf - 102.1 KB
Monthly Temperature & Precipitation Review
A general synopsis of weather conditions observed in Dallas, Austin, San Antonio, and Houston in the previous month.
Dec 3, 2025 - pdf - 166.7 KB
Weather Seasonal Updates
A seasonal forecast for the ERCOT region.
Nov 26, 2025 - pdf - 563.7 KB