BROWNSVILLE, TX 78521 Weather Forecast & Current Conditions

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BROWNSVILLE, TX
Current Weather

8:53 PM CDT SEP 1, 2026
Clear
86°F
Feels Like: 97°F
Dewpoint: 77°F
Rel. Hum.: 75%
Visibility: 10 miles
Wind: SE at 9 mph
Pressure: 29.91 inches
Last 72 hours

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BROWNSVILLE, TX 78521
Weather Forecast

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THIS AFTERNOON
Sunny, hot. Near steady temperature in the upper 90s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 112.
TONIGHT
Mostly clear. Humid with lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 107 early in the evening.
WEDNESDAY
Sunny, hot with highs around 101. South winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 113.
WEDNESDAY NIGHT
Mostly clear. Humid with lows around 80. Southeast winds 15 to 20 mph with gusts up to 25 mph. Heat index values up to 108 early in the evening.
THURSDAY
Sunny, hot with highs around 100. Southeast winds 15 to 20 mph. Gusts up to 30 mph. Heat index values up to 112.
THURSDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 70s. Heat index values up to 105 early in the evening.
FRIDAY
Mostly sunny. Highs in the upper 90s. Heat index values up to 110.
FRIDAY NIGHT
Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.
SATURDAY
Mostly sunny. Highs in the upper 90s. Heat index values up to 115.
SATURDAY NIGHT
Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.
SUNDAY
Sunny. Highs in the upper 90s. Heat index values up to 110.
SUNDAY NIGHT
Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.
LABOR DAY
Sunny. Highs in the upper 90s. Heat index values up to 110.

Visible Weather Satellite
BROWNSVILLE, TX 78521
Infrared Weather Satellite
BROWNSVILLE, TX 78521
NEXRAD Weather Radar
BROWNSVILLE, TX 78521

BROWNSVILLE, TX 3 hourly weather forecast

weather forecast created  7:00 AM CDT  9/ 1/2026
Tuesday
1 SEP 2026
BROWNSVILLE, TX 78521 weather forecast Day 1, 12 hours 1 PM 96° 106° Clear 1%

0% Thunder
( 15% severe)
SSE   13 48% 73°
High 97° BROWNSVILLE, TX 78521 weather forecast Day 1, 15 hours 4 PM 96° 106° Clear SE   16 48% 73°
Clear



BROWNSVILLE, TX 78521 weather forecast Day 1, 18 hours 7 PM 89° 99° Clear 1%

0% Thunder
( 3% severe)
SE   15 64% 75°
BROWNSVILLE, TX 78521 weather forecast Day 1, 21 hours 10 PM 85° 96° Clear SE   12 77% 77°
Wednesday
2 SEP 2026
BROWNSVILLE, TX 78521 weather forecast Day 2, 0 hours 1 AM 83° 92° Clear 1%

0% Thunder
( 3% severe)
SSE   9 82% 77°
Low 81° BROWNSVILLE, TX 78521 weather forecast Day 2, 3 hours 4 AM 82° 90° Partly Cloudy S   9 85% 77°
High 101° BROWNSVILLE, TX 78521 weather forecast Day 2, 6 hours 7 AM 81° 88° Partly Cloudy 0%

0% Thunder
( 8% severe)
S   8 88% 77°

Partly Cloudy



BROWNSVILLE, TX 78521 weather forecast Day 2, 9 hours 10 AM 90° 102° Partly Cloudy S   12 64% 76°
BROWNSVILLE, TX 78521 weather forecast Day 2, 12 hours 1 PM 97° 107° Clear 0%

0% Thunder
( 12% severe)
SSE   15 46% 73°
BROWNSVILLE, TX 78521 weather forecast Day 2, 15 hours 4 PM 97° 107° Clear SE   18 46% 73°
BROWNSVILLE, TX 78521 weather forecast Day 2, 18 hours 7 PM 89° 99° Partly Cloudy 0%

0% Thunder
( 3% severe)
SE   17 64% 75°
BROWNSVILLE, TX 78521 weather forecast Day 2, 21 hours 10 PM 85° 96° Partly Cloudy SE   15 77% 77°
Thursday
3 SEP 2026
BROWNSVILLE, TX 78521 weather forecast Day 3, 0 hours 1 AM 84° 94° Partly Cloudy 1%

0% Thunder
( 6% severe)
SSE   10 80% 77°
Low 81° BROWNSVILLE, TX 78521 weather forecast Day 3, 3 hours 4 AM 83° 92° Partly Cloudy SSE   9 82% 77°
High 100° BROWNSVILLE, TX 78521 weather forecast Day 3, 6 hours 7 AM 82° 90° Partly Cloudy 1%

0% Thunder
( 10% severe)
SSE   9 85% 77°

Partly Cloudy



BROWNSVILLE, TX 78521 weather forecast Day 3, 9 hours 10 AM 90° 102° Partly Cloudy SSE   13 64% 76°
BROWNSVILLE, TX 78521 weather forecast Day 3, 15 hours 1 PM 96° 106° Partly Cloudy 1%

0% Thunder
( 17% severe)
SSE   16 48% 73°
BROWNSVILLE, TX 78521 weather forecast Day 3, 18 hours 4 PM 96° 107° Partly Cloudy SE   20 49% 74°
BROWNSVILLE, TX 78521 weather forecast Day 3, 21 hours 7 PM 89° 99° Partly Cloudy     SE   18 64% 75°

BROWNSVILLE, TX extended weather forecast

Friday
4 SEP 2026
Saturday
5 SEP 2026
Sunday
6 SEP 2026
Monday
7 SEP 2026
Tuesday
8 SEP 2026
Low 80° Low 80° Low 79° Low 77° Low 77°
High 97° High 96° High 95° High 94° High 95°
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 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
22% Rain
Partly Cloudy
43% Rain
Partly Cloudy
42% Rain
Partly Cloudy
40% Rain
Partly Cloudy
36% Rain
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