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Weather Forecast

The ERCOT Weather Forecast is developed by ERCOT Meteorologists Chris Coleman, Mia Schroller, 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:
The cold front will finish pushing through South Texas tonight, with much cooler air in its wake. There will be below-normal temperatures throughout the ERCOT Region this weekend before rebounding warmer early next week. Tuesday will likely be the warmest day of the forecast period, ahead of the next significant cold front due to move through on Wednesday. Below-normal temperatures are likely again late next week. Today will be impacted by numerous showers and thunderstorms tracking eastward across the state. The bulk of the rain will exit the state by midnight tonight, with some lingering precipitation in the Rio Grande Valley into Saturday morning. The next rain/storm chance will be associated with next Wednesday’s cold front, with additional rain opportunities later in the week.   

Today:
Multiple rounds of showers and thunderstorms will impact the majority of Texas today, with showers and thunderstorms developing and moving from west to east. North Texas will remain mostly dry, as will southernmost locations. Flash flood watches are in place for most of the large region expecting rain today. Precipitation will diminish across West Texas as the afternoon progresses, winding down in the I-35 region toward evening and Southeast Texas around midnight. A few showers and maybe a thunderstorm will still be possible late tonight in the Rio Grande Valley. Temperatures this afternoon will be quite chilly for the first of May, with 60s most common this afternoon. The Rio Grande Valley is still ahead of the front and should see highs near 90 this afternoon before the front moves through tonight. Temperatures will drop into the 40s and 50s overnight as drier air moves in. 

This Weekend:
Seasonally cool this weekend, but generally pleasant and dry (with exception to some lingering rain in the Rio Grande Valley Saturday morning). Highs on Saturday will be commonly in the 70s. Another cool night Saturday night with lows mostly in the 50s Sunday morning. A bit warmer Sunday afternoon with highs mostly ranging from the mid-70s to low 80s. Not as cool Sunday night as temperatures trend warmer into Monday.

Forecaster: CC

7-Day Temperature Forecast by City
Low and high temperatures forecast for the next seven days for major cities within the ERCOT system.
May 1, 2026 - pdf - 140.7 KB
Forecast Variability Report
ERCOT’s assessment of the potential for load, wind, and solar conditions to vary between forecasts and actuals.
May 1, 2026 - pdf - 93.5 KB
Monthly Temperature & Precipitation Review
A general synopsis of weather conditions observed in Dallas, Austin, San Antonio, and Houston in the previous month.
Apr 1, 2026 - pdf - 126.1 KB
Weather Seasonal Updates
A seasonal forecast for the ERCOT region.
Mar 2, 2026 - pdf - 237.9 KB