BROWNSVILLE, TX 78521 Weather Forecast & Current Conditions
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  78521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

BROWNSVILLE, TX
Current Weather
11:53 PM CDT MAY 18, 2026
Overcast
84°F
Feels Like: 94°F
Dewpoint: 77°F
Rel. Hum.: 80%
Visibility: 10 miles
Wind: SSE at 15 mph, gusts to 24
Pressure: 29.92 inches
Last 72 hours

Local Area Snow Depth

Texas Current Weather

Texas MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  78521 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

BROWNSVILLE, TX 78521
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
OVERNIGHT
Mostly cloudy. Near steady temperature in the lower 80s. Southeast winds 15 to 20 mph with gusts up to 30 mph.
TUESDAY
Mostly cloudy in the morning, then becoming partly sunny. Humid with highs in the mid 90s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Heat index values up to 110.
TUESDAY NIGHT
Mostly cloudy. Humid with lows around 80. Southeast winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 105 early in the evening.
WEDNESDAY
Partly sunny. Humid with highs in the lower 90s. Southeast winds 10 to 15 mph with gusts up to 25 mph.
WEDNESDAY NIGHT
Mostly cloudy. Humid with lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph.
THURSDAY
Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. Highs in the lower 90s. Chance of rain 50 percent.
THURSDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 50 percent.
FRIDAY
Mostly cloudy in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent.
FRIDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 50 percent.
SATURDAY
Partly sunny with a chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs around 90. Chance of rain 60 percent.
SATURDAY NIGHT
A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 70s. Chance of rain 70 percent.
SUNDAY
Showers likely with a chance of thunderstorms. Highs in the upper 80s. Chance of rain 70 percent.
SUNDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the mid 70s. Chance of rain 50 percent.

  78521 WEATHER SATELLITE LOOPS
Visible Weather Satellite
BROWNSVILLE, TX 78521
Infrared Weather Satellite
BROWNSVILLE, TX 78521
  78521 WEATHER RADAR LOOP
NEXRAD Weather Radar
BROWNSVILLE, TX 78521
 MOS COMPUTER WEATHER FORECAST

BROWNSVILLE, TX 3 hourly weather forecast
weather forecast created  7:00 PM CDT  5/18/2026
Tuesday
19 MAY 2026		 BROWNSVILLE, TX 78521 weather forecast Day 1, 0 hours 1 AM 83° 92° Mostly Cloudy 28%
RAIN
.25–.5 in		 0% Thunder
( 12% severe)		 SE   16 82% 77°
Low 80° BROWNSVILLE, TX 78521 weather forecast Day 1, 3 hours 4 AM 82° 89° Mostly Cloudy SSE   13 82% 76°
High 96° BROWNSVILLE, TX 78521 weather forecast Day 1, 6 hours 7 AM 81° 87° Mostly Cloudy 7%

 0% Thunder
( 12% severe)		 SE   14 85% 76°

Mostly Cloudy




Breezy		 BROWNSVILLE, TX 78521 weather forecast Day 1, 9 hours 10 AM 87° 98° Mostly Cloudy SE   17 70% 76°
BROWNSVILLE, TX 78521 weather forecast Day 1, 12 hours 1 PM 92° 105° Mostly Cloudy 4%

 0% Thunder
( 12% severe)		 SE   20 60% 76°
BROWNSVILLE, TX 78521 weather forecast Day 1, 15 hours 4 PM 92° 105° Mostly Cloudy SE   18 60% 76°
BROWNSVILLE, TX 78521 weather forecast Day 1, 18 hours 7 PM 86° 97° Mostly Cloudy 6%

 0% Thunder
( 16% severe)		 SE   17 75% 77°
BROWNSVILLE, TX 78521 weather forecast Day 1, 21 hours 10 PM 84° 95° Mostly Cloudy SE   16 82% 78°
Wednesday
20 MAY 2026		 BROWNSVILLE, TX 78521 weather forecast Day 2, 0 hours 1 AM 83° 93° Mostly Cloudy 16%
RAIN
.25–.5 in		 0% Thunder
( 20% severe)		 SE   13 85% 78°
Low 81° BROWNSVILLE, TX 78521 weather forecast Day 2, 3 hours 4 AM 82° 90° Mostly Cloudy SE   12 85% 77°
High 94° BROWNSVILLE, TX 78521 weather forecast Day 2, 6 hours 7 AM 81° 87° Mostly Cloudy 4%

 0% Thunder
( 13% severe)		 ESE   13 85% 76°

Mostly Cloudy




Breezy		 BROWNSVILLE, TX 78521 weather forecast Day 2, 9 hours 10 AM 85° 93° Mostly Cloudy SE   16 72% 75°
BROWNSVILLE, TX 78521 weather forecast Day 2, 12 hours 1 PM 90° 99° Mostly Cloudy 1%

 0% Thunder
( 9% severe)		 SE   18 58% 73°
BROWNSVILLE, TX 78521 weather forecast Day 2, 15 hours 4 PM 90° 99° Mostly Cloudy SE   17 58% 73°
BROWNSVILLE, TX 78521 weather forecast Day 2, 18 hours 7 PM 85° 93° Mostly Cloudy 1%

 0% Thunder
( 10% severe)		 ESE   14 70% 74°
BROWNSVILLE, TX 78521 weather forecast Day 2, 21 hours 10 PM 82° 89° Mostly Cloudy ESE   12 82% 76°

BROWNSVILLE, TX extended weather forecast
BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE		 BAD DAY
BAD DATE
Low 78° Low 78° Low 75° Low 77° Low 75°
High 93° High 93° High 92° High 91° High 91°
BROWNSVILLE, TX 78521 weather forecast Day 3 BROWNSVILLE, TX 78521 weather forecast Day 4 BROWNSVILLE, TX 78521 weather forecast Day 5 BROWNSVILLE, TX 78521 weather forecast Day 6 BROWNSVILLE, TX 78521 weather forecast Day 7
Mostly Cloudy
32% Rain		 Overcast
25% Rain		 Overcast
61% Rain		 Overcast
40% Rain		 Overcast
51% Rain
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