BROWNSVILLE, TX 78521 Weather Forecast & Current Conditions

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BROWNSVILLE, TX
Current Weather

9:53 PM CDT AUG 15, 2026
Clear
86°F
Feels Like: 97°F
Dewpoint: 77°F
Rel. Hum.: 75%
Visibility: 10 miles
Wind: SE at 9 mph
Pressure: 30.07 inches
Last 72 hours

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BROWNSVILLE, TX 78521
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
OVERNIGHT
Mostly clear. Near steady temperature in the lower 80s. Southeast winds 5 to 10 mph with gusts up to 20 mph.
SUNDAY
Sunny with highs in the upper 90s. Southeast winds 10 to 15 mph. Gusts up to 25 mph in the afternoon. Heat index values up to 111.
SUNDAY NIGHT
Mostly clear. Humid with lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph, diminishing to around 5 mph after midnight. Heat index values up to 106 early in the evening.
MONDAY
Sunny with highs in the upper 90s. East winds 10 to 15 mph. Heat index values up to 110.
MONDAY NIGHT
Mostly clear. Humid with lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 20 mph, diminishing to around 5 mph after midnight.
TUESDAY
Sunny. Highs in the upper 90s. Heat index values up to 110.
TUESDAY NIGHT
Mostly clear. Lows in the upper 70s.
WEDNESDAY
Sunny. Highs in the upper 90s. Heat index values up to 110.
WEDNESDAY 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.
THURSDAY
Sunny. Highs in the upper 90s. Heat index values up to 110.
THURSDAY NIGHT
Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.
FRIDAY
Sunny, hot with highs around 100. Heat index values up to 110.
FRIDAY NIGHT
Mostly clear. Lows in the upper 70s.

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  8/15/2026
Saturday
15 AUG 2026
BROWNSVILLE, TX 78521 weather forecast Day 1, 12 hours 1 PM 94° 104° Partly Cloudy 1%

0% Thunder
( 15% severe)
SE   15 51% 73°
High 95° BROWNSVILLE, TX 78521 weather forecast Day 1, 15 hours 4 PM 93° 102° Partly Cloudy ESE   17 52% 73°
Partly Cloudy



BROWNSVILLE, TX 78521 weather forecast Day 1, 18 hours 7 PM 88° 98° Partly Cloudy 3%

0% Thunder
( 4% severe)
ESE   15 66% 75°
BROWNSVILLE, TX 78521 weather forecast Day 1, 21 hours 10 PM 84° 94° Partly Cloudy SE   12 80% 77°
Sunday
16 AUG 2026
BROWNSVILLE, TX 78521 weather forecast Day 2, 0 hours 1 AM 83° 92° Partly Cloudy 3%

0% Thunder
( 12% severe)
SE   8 82% 77°
Low 81° BROWNSVILLE, TX 78521 weather forecast Day 2, 3 hours 4 AM 82° 91° Partly Cloudy SSE   6 88% 78°
High 98° BROWNSVILLE, TX 78521 weather forecast Day 2, 6 hours 7 AM 81° 88° Partly Cloudy 4%

0% Thunder
( 13% severe)
ESE   3 88% 77°

Partly Cloudy



BROWNSVILLE, TX 78521 weather forecast Day 2, 9 hours 10 AM 88° 99° Partly Cloudy SE   7 68% 76°
BROWNSVILLE, TX 78521 weather forecast Day 2, 12 hours 1 PM 94° 105° Partly Cloudy 3%

0% Thunder
( 17% severe)
ESE   12 53% 74°
BROWNSVILLE, TX 78521 weather forecast Day 2, 15 hours 4 PM 94° 105° Partly Cloudy ESE   15 53% 74°
BROWNSVILLE, TX 78521 weather forecast Day 2, 18 hours 7 PM 88° 98° Clear 1%

0% Thunder
( 3% severe)
ESE   14 66% 75°
BROWNSVILLE, TX 78521 weather forecast Day 2, 21 hours 10 PM 84° 94° Partly Cloudy SE   8 80% 77°
Monday
17 AUG 2026
BROWNSVILLE, TX 78521 weather forecast Day 3, 0 hours 1 AM 83° 92° Clear 7%

0% Thunder
( 12% severe)
SE   5 82% 77°
Low 80° BROWNSVILLE, TX 78521 weather forecast Day 3, 3 hours 4 AM 81° 88° Clear SSE   2 88% 77°
High 98° BROWNSVILLE, TX 78521 weather forecast Day 3, 6 hours 7 AM 80° 86° Clear 8%

0% Thunder
( 19% severe)
  CALM 91% 77°

Partly Cloudy



BROWNSVILLE, TX 78521 weather forecast Day 3, 9 hours 10 AM 88° 99° Partly Cloudy SE   5 68% 76°
BROWNSVILLE, TX 78521 weather forecast Day 3, 15 hours 1 PM 94° 105° Partly Cloudy 14%
RAIN
<.01 in
0% Thunder
( 27% severe)
ESE   10 53% 74°
BROWNSVILLE, TX 78521 weather forecast Day 3, 18 hours 4 PM 94° 105° Partly Cloudy ESE   14 53% 74°
BROWNSVILLE, TX 78521 weather forecast Day 3, 21 hours 7 PM 89° 99° Clear     SE   13 64% 75°

BROWNSVILLE, TX extended weather forecast

Tuesday
18 AUG 2026
Wednesday
19 AUG 2026
Thursday
20 AUG 2026
Friday
21 AUG 2026
Saturday
22 AUG 2026
Low 77° Low 79° Low 80° Low 79° Low 79°
High 96° High 97° High 97° High 97° High 98°
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
Clear
18% Rain
Clear
14% Rain
Clear
15% Rain
Clear
15% Rain
Partly Cloudy
21% Rain
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