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

BROWNSVILLE, TX
Current Weather
1:53 PM CDT SEP 27, 2026
Clear
95°F
Feels Like: 105°F
Dewpoint: 73°F
Rel. Hum.: 49%
Visibility: 10 miles
Wind: E at 12 mph, gusts to 22
Pressure: 29.88 inches
Last 72 hours

Local Area Snow Depth

Texas Current Weather

Texas MOS Forecast Weather


Regional Weather Maps

(Automated weather data from NWS/FAA)
  78521 WEATHER FORECAST
10-Day model forecast maps
2026 Hurricanes

BROWNSVILLE, TX 78521
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
THIS AFTERNOON
Mostly sunny. Near steady temperature in the mid 90s. East winds 10 to 15 mph with gusts up to 20 mph. Heat index values up to 106.
TONIGHT
Partly cloudy. Lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 20 mph, diminishing to around 5 mph after midnight.
MONDAY
Mostly sunny. Highs in the upper 90s. East winds around 5 mph, increasing to 10 to 15 mph with gusts up to 25 mph in the afternoon. Heat index values up to 106.
MONDAY NIGHT
Partly cloudy. Humid with lows in the upper 70s. East winds 10 to 15 mph with gusts up to 25 mph, becoming southeast around 5 mph after midnight.
TUESDAY
Mostly sunny. A chance of showers in the afternoon. Humid with highs in the upper 90s. Southeast winds 15 to 20 mph. Gusts up to 30 mph. Chance of rain 30 percent. Heat index values up to 111.
TUESDAY NIGHT
Partly cloudy. Lows around 80. Heat index values up to 105 early in the evening.
WEDNESDAY
Mostly sunny. Highs in the upper 90s. Heat index values up to 115.
WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows around 80. Heat index values up to 105 early.
THURSDAY
Partly sunny. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 70 percent. Heat index values up to 110.
THURSDAY 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. Heat index values up to 105 early in the evening.
FRIDAY
Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 80 percent.
FRIDAY NIGHT
A chance of showers in the evening, then showers likely after midnight. Lows in the mid 70s. Chance of rain 70 percent.
SATURDAY
A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 60 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 AM CDT  9/27/2026
Sunday
27 SEP 2026		 BROWNSVILLE, TX 78521 weather forecast Day 1, 12 hours 1 PM 95° 104° Partly Cloudy 12%
RAIN
<.01 in		 0% Thunder
( 15% severe)		 ESE   6 48% 72°
High 96° BROWNSVILLE, TX 78521 weather forecast Day 1, 15 hours 4 PM 93° 102° Mostly Cloudy E   12 52% 73°
Mostly Cloudy



 BROWNSVILLE, TX 78521 weather forecast Day 1, 18 hours 7 PM 87° 94° Mostly Cloudy 1%

 0% Thunder
( 3% severe)		 ESE   10 63% 73°
BROWNSVILLE, TX 78521 weather forecast Day 1, 21 hours 10 PM 84° 91° Partly Cloudy ESE   6 72% 74°
Monday
28 SEP 2026		 BROWNSVILLE, TX 78521 weather forecast Day 2, 0 hours 1 AM 82° 89° Partly Cloudy 2%

 0% Thunder
( 5% severe)		 SE   3 79% 75°
Low 79° BROWNSVILLE, TX 78521 weather forecast Day 2, 3 hours 4 AM 80° 85° Partly Cloudy   CALM 85% 75°
High 98° BROWNSVILLE, TX 78521 weather forecast Day 2, 6 hours 7 AM 79° 83° Partly Cloudy 25%
RAIN
.1–.25 in		 0% Thunder
( 8% severe)		   CALM 88% 75°

Partly Cloudy

Chance of Rain

 BROWNSVILLE, TX 78521 weather forecast Day 2, 9 hours 10 AM 88° 98° Partly Cloudy E   3 66% 75°
BROWNSVILLE, TX 78521 weather forecast Day 2, 12 hours 1 PM 93° 101° Partly Cloudy 24%
RAIN
<.01 in		 0% Thunder
( 15% severe)		 ESE   9 51% 72°
BROWNSVILLE, TX 78521 weather forecast Day 2, 15 hours 4 PM 93° 102° Partly Cloudy ESE   14 52% 73°
BROWNSVILLE, TX 78521 weather forecast Day 2, 18 hours 7 PM 86° 94° Mostly Cloudy 0%

 0% Thunder
( 7% severe)		 E   13 68% 74°
BROWNSVILLE, TX 78521 weather forecast Day 2, 21 hours 10 PM 84° 92° Partly Cloudy ESE   9 74% 75°
Tuesday
29 SEP 2026		 BROWNSVILLE, TX 78521 weather forecast Day 3, 0 hours 1 AM 83° 90° Partly Cloudy 9%

 0% Thunder
( 11% severe)		 SE   7 77% 75°
Low 80° BROWNSVILLE, TX 78521 weather forecast Day 3, 3 hours 4 AM 82° 89° Partly Cloudy SE   7 82% 76°
High 98° BROWNSVILLE, TX 78521 weather forecast Day 3, 6 hours 7 AM 81° 87° Partly Cloudy 8%

 0% Thunder
( 15% severe)		 SE   7 85% 76°

Partly Cloudy



 BROWNSVILLE, TX 78521 weather forecast Day 3, 9 hours 10 AM 89° 102° Partly Cloudy SSE   12 68% 77°
BROWNSVILLE, TX 78521 weather forecast Day 3, 15 hours 1 PM 94° 106° Mostly Cloudy 12%
RAIN
<.01 in		 0% Thunder
( 23% severe)		 SE   16 54% 75°
BROWNSVILLE, TX 78521 weather forecast Day 3, 18 hours 4 PM 93° 106° Partly Cloudy SE   18 58% 76°
BROWNSVILLE, TX 78521 weather forecast Day 3, 21 hours 7 PM 87° 99° Partly Cloudy     SE   18 72% 77°

BROWNSVILLE, TX extended weather forecast
Wednesday
30 SEP 2026		 Thursday
1 OCT 2026		 Friday
2 OCT 2026		 Saturday
3 OCT 2026		 Sunday
4 OCT 2026
Low 81° Low 80° Low 71° Low 71° Low 72°
High 96° High 92° High 84° High 86° High 88°
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
27% Rain		 Mostly Cloudy
75% Rain		 Overcast
76% Rain		 Mostly Cloudy
50% Rain		 Partly Cloudy
32% Rain
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