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Weather Extremes
| Past 24 Hours |
| USA High Temp |
| 99°F at Eastover Mcentire Ang, SC 99°F at Palm Springs Asos, CA 99°F at Desert Resorts Regional Ap, CA |
| USA Low Temp |
| 21°F at Berthoud Pass, CO |
| USA Most Rain |
| 3.51in at Zapata County Airport, TX |
| Date of USA Report |
| Thursday, May 21, 2026 |
| CA High Temp |
| 99°F at Palm Springs Asos, CA 99°F at Desert Resorts Regional Ap, CA |
| CA Low Temp |
| 30°F at Mammoth Lakes Mammoth Yosemite Ap, CA |
| CA Most Rain |
| none |
| Date of CA Report |
| Thursday, May 21, 2026 |
| Data from National Weather Service |
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| Radar/Satellite images courtesy of NOAA/NWS and Weather Underground. | |
| Updated: @ 22-May-2026 4:18pm - next update at 4:20pm | |||||||||||||||||||||||||||||||||||||||
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| NWS Weather Forecast - Outlook: This Afternoon & Tonight | ||||||
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| Countdown to Summer | ||
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| WEATHER STORY Brownsville Weather Forecast Office |
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Deep tropical moisture will support high precipitation efficiency through this holiday weekend. The combination of high atmospheric moisture content and thunderstorms tracking over an already primed saturated soil will result in a flash flood threat. The probability for flash flooding is especially high for any slow-moving thunderstorms tracking over the same areas. Latest forecast trends suggest that the greatest potential for heavy rainfall and flooding this weekend will be for areas east of IH-69C/US-281. Remember to avoid flooded roadways, drive slowly, increased distance between yourself and the vehicle in front of you, have multiple ways of receiving warnings, and stay weather aware!
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Data Courtesy of Brownsville Weather Forecast Office
