National Weather Service United States Department of Commerce

Threat of flash flooding continues on Sunday for Southern Plains and Inter-Mountain West

High levels of moisture still remain in portions of the Southern Plains and Inter-Mountain West on Sunday. This will continue the threat of locally heavy rainfall for one more day. Isolated locations could receive 1-2 inches of additional rainfall on Sunday. The areal coverage of these storms should be less than previous days.
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Current Conditions

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Mercedes TX

7 Day Forecast

For More Weather Information:

Brownsville, TX Local Forecast Office

Overnight

Scattered Thunderstorms Chance for Measurable Precipitation 40%

Scattered
Thunderstorms

Low: 76 °F

Sunday

Chance Thunderstorms Chance for Measurable Precipitation 50%

Chance
Thunderstorms

High: 90 °F

Sunday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 77 °F

Monday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 92 °F

Monday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 78 °F

Tuesday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 92 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 75 °F

Wednesday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 92 °F

Wednesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 74 °F

Detailed Forecast

  • Overnight Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. Calm wind. Chance of precipitation is 40%.
  • Sunday A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Light northeast wind becoming east northeast 5 to 10 mph in the afternoon.
  • Sunday Night A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 77. East wind 6 to 11 mph becoming light after midnight.
  • Monday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Light north northeast wind becoming east northeast 9 to 14 mph in the morning. Winds could gust as high as 20 mph.
  • Monday Night A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. East wind 5 to 11 mph becoming north after midnight.
  • Tuesday A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. East northeast wind 6 to 13 mph.
  • Tuesday Night Partly cloudy, with a low around 75.
  • Wednesday A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 92.
  • Wednesday Night A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
  • Thursday A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
  • Thursday Night A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
  • Friday A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
  • Friday Night A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
  • Saturday A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.