BROWNSVILLE, TX 78521 Weather Forecast & Current Conditions

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78521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
BROWNSVILLE, TX Current Weather
8:53 PM CDT AUG 29, 2026
Clear 86°F
Feels Like:	95°F
Dewpoint:	75°F
Rel. Hum.:	70%
Visibility:	10 miles
Wind:	SE at 9 mph
Pressure:	29.96 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 with a chance of showers and thunderstorms. Near steady temperature in the mid 90s. Southeast winds 10 to 15 mph with gusts up to 20 mph. Chance of rain 40 percent. Heat index values up to 110.

TONIGHT
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. Heat index values up to 105 early in the evening.

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. Heat index values up to 106 early in the evening.

MONDAY
Sunny with highs in the upper 90s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 112.

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.

TUESDAY NIGHT
Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.

WEDNESDAY
Sunny. Highs in the upper 90s. Heat index values up to 115.

WEDNESDAY NIGHT
Mostly clear. 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. Highs in the upper 90s. Heat index values up to 110.

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 8/29/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Saturday
29 AUG 2026

1 PM

93°

103°

Partly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 27% severe)

ESE 10

54%

74°

High 94°

4 PM

93°

103°

Partly Cloudy

ESE 13

54%

74°

Partly Cloudy

7 PM

88°

97°

Clear

1%

0% Thunder
( 4% severe)

ESE 12

63%

74°

10 PM

84°

93°

Partly Cloudy

SE 7

77%

76°

Sunday
30 AUG 2026

1 AM

82°

90°

Clear

2%

0% Thunder
( 10% severe)

SSE 6

85%

77°

Low 80°

4 AM

81°

88°

Partly Cloudy

SSE 6

88%

77°

High 98°

7 AM

81°

88°

Partly Cloudy

12%
RAIN
.25–.5 in

0% Thunder
( 16% severe)

SE 5

88%

77°

Partly Cloudy

10 AM

89°

101°

Partly Cloudy

SSE 8

66%

76°

1 PM

95°

106°

Partly Cloudy

12%
RAIN
.1–.25 in

0% Thunder
( 25% severe)

SE 12

51%

74°

4 PM

94°

106°

Partly Cloudy

SE 15

54%

75°

7 PM

88°

98°

Clear

0%

0% Thunder
( 6% severe)

SE 15

66%

75°

10 PM

85°

95°

Partly Cloudy

SE 10

75%

76°

Monday
31 AUG 2026

1 AM

83°

92°

Clear

4%

0% Thunder
( 10% severe)

SSE 8

82%

77°

Low 81°

4 AM

82°

90°

Partly Cloudy

S 8

85%

77°

High 99°

7 AM

81°

88°

Clear

1%

0% Thunder
( 14% severe)

SSE 7

88%

77°

Clear

10 AM

89°

101°

Clear

SSE 10

66%

76°

1 PM

95°

106°

Clear

4%

0% Thunder
( 22% severe)

SE 14

51%

74°

4 PM

94°

105°

Clear

SE 17

53%

74°

7 PM

88°

98°

Clear

SE 16

66%

75°


BROWNSVILLE, TX extended weather forecast
Tuesday 1 SEP 2026	Wednesday 2 SEP 2026	Thursday 3 SEP 2026	Friday 4 SEP 2026	Saturday 5 SEP 2026
Low 80°	Low 79°	Low 79°	Low 78°	Low 79°
High 97°	High 97°	High 96°	High 97°	High 97°

Partly Cloudy 23% Rain	Partly Cloudy 28% Rain	Partly Cloudy 27% Rain	Partly Cloudy 20% Rain	Partly Cloudy 21% Rain

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