BROWNSVILLE, TX 78521 Weather Forecast & Current Conditions

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BROWNSVILLE, TX
Current Weather

7:53 PM CDT AUG 26, 2026
Clear
88°F
Feels Like: 98°F
Dewpoint: 75°F
Rel. Hum.: 66%
Visibility: 10 miles
Wind: SE at 14 mph
Pressure: 29.94 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 20 mph. Heat index values up to 111.
TONIGHT
Clear with lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 20 mph, becoming south around 5 mph after midnight. Heat index values up to 106 early in the evening.
THURSDAY
Sunny, hot with highs around 100. South winds around 5 mph, increasing to southeast 10 to 15 mph with gusts up to 20 mph in the afternoon. Heat index values up to 111.
THURSDAY NIGHT
Mostly clear. Humid with lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 20 mph, becoming south around 5 mph after midnight. Heat index values up to 106 early in the evening.
FRIDAY
Sunny with highs in the upper 90s. South winds around 5 mph, increasing to southeast 10 to 15 mph with gusts up to 20 mph in the afternoon. Heat index values up to 110.
FRIDAY NIGHT
Mostly clear. Lows in the upper 70s.
SATURDAY
Sunny. Highs in the upper 90s. Heat index values up to 110.
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.
MONDAY
Sunny. Highs in the upper 90s. Heat index values up to 110.
MONDAY NIGHT
Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.
TUESDAY
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  8/26/2026
Wednesday
26 AUG 2026
BROWNSVILLE, TX 78521 weather forecast Day 1, 12 hours 1 PM 96° 106° Clear 2%

0% Thunder
( 17% severe)
SE   12 48% 73°
High 97° BROWNSVILLE, TX 78521 weather forecast Day 1, 15 hours 4 PM 95° 105° Clear ESE   15 49% 73°
Clear



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

0% Thunder
( 2% severe)
SE   14 64% 75°
BROWNSVILLE, TX 78521 weather forecast Day 1, 21 hours 10 PM 84° 93° Partly Cloudy SSE   9 77% 76°
Thursday
27 AUG 2026
BROWNSVILLE, TX 78521 weather forecast Day 2, 0 hours 1 AM 83° 91° Clear 1%

0% Thunder
( 6% severe)
S   6 80% 76°
Low 80° BROWNSVILLE, TX 78521 weather forecast Day 2, 3 hours 4 AM 81° 87° Clear S   5 85% 76°
High 100° BROWNSVILLE, TX 78521 weather forecast Day 2, 6 hours 7 AM 80° 85° Partly Cloudy 2%

0% Thunder
( 8% severe)
S   3 88% 76°

Clear



BROWNSVILLE, TX 78521 weather forecast Day 2, 9 hours 10 AM 88° 98° Clear S   5 66% 75°
BROWNSVILLE, TX 78521 weather forecast Day 2, 12 hours 1 PM 96° 105° Clear 2%

0% Thunder
( 17% severe)
SSE   8 46% 72°
BROWNSVILLE, TX 78521 weather forecast Day 2, 15 hours 4 PM 96° 105° Clear SE   14 46% 72°
BROWNSVILLE, TX 78521 weather forecast Day 2, 18 hours 7 PM 89° 98° Clear 0%

0% Thunder
( 3% severe)
SE   13 61% 74°
BROWNSVILLE, TX 78521 weather forecast Day 2, 21 hours 10 PM 85° 95° Clear SE   8 75% 76°
Friday
28 AUG 2026
BROWNSVILLE, TX 78521 weather forecast Day 3, 0 hours 1 AM 83° 91° Clear 0%

0% Thunder
( 7% severe)
SSE   6 80% 76°
Low 80° BROWNSVILLE, TX 78521 weather forecast Day 3, 3 hours 4 AM 82° 90° Partly Cloudy SSE   6 85% 77°
High 100° BROWNSVILLE, TX 78521 weather forecast Day 3, 6 hours 7 AM 81° 88° Partly Cloudy 4%

0% Thunder
( 14% severe)
S   5 88% 77°

Partly Cloudy



BROWNSVILLE, TX 78521 weather forecast Day 3, 9 hours 10 AM 89° 101° Partly Cloudy SSE   5 66% 76°
BROWNSVILLE, TX 78521 weather forecast Day 3, 15 hours 1 PM 96° 106° Clear 12%
RAIN
<.01 in
0% Thunder
( 22% severe)
SE   9 48% 73°
BROWNSVILLE, TX 78521 weather forecast Day 3, 18 hours 4 PM 95° 105° Clear ESE   14 49% 73°
BROWNSVILLE, TX 78521 weather forecast Day 3, 21 hours 7 PM 89° 98° Clear     ESE   13 61% 74°

BROWNSVILLE, TX extended weather forecast

Saturday
29 AUG 2026
Sunday
30 AUG 2026
Monday
31 AUG 2026
Tuesday
1 SEP 2026
Wednesday
2 SEP 2026
Low 79° Low 79° Low 78° Low 79° Low 78°
High 97° High 97° High 97° High 96° High 94°
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
19% Rain
Partly Cloudy
25% Rain
Partly Cloudy
23% Rain
Partly Cloudy
23% Rain
Partly Cloudy
33% Rain
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