BROWNSVILLE, TX 78521 Weather Forecast & Current Conditions

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78521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
BROWNSVILLE, TX Current Weather
11:53 PM CDT SEP 7, 2026
Clear 84°F
Feels Like:	96°F
Dewpoint:	79°F
Rel. Hum.:	85%
Visibility:	10 miles
Wind:	SSE at 8 mph
Pressure:	29.97 inches
Last 72 hours
Local Area Snow Depth
Texas Current Weather
Texas MOS Forecast Weather

Weather Map

(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

REST OF TONIGHT
Mostly clear. Near steady temperature in the lower 80s. Southeast winds 5 to 10 mph.

TUESDAY
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 90s. Southeast winds 10 to 15 mph. Gusts up to 25 mph in the afternoon. Chance of rain 20 percent. Heat index values up to 113.

TUESDAY 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 107 early in the evening.

WEDNESDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 90s. Southeast winds around 5 mph, increasing to east 10 to 15 mph with gusts up to 20 mph in the afternoon. Chance of rain 40 percent. Heat index values up to 112.

WEDNESDAY 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. Heat index values up to 107 early in the evening.

THURSDAY
Sunny, hot with highs around 100. 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 115.

FRIDAY NIGHT
Mostly clear. Lows around 80. Heat index values up to 110 early in the evening.

SATURDAY
Sunny, hot with highs around 100. Heat index values up to 115.

SATURDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows around 80. Heat index values up to 110 early in the evening.

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

SUNDAY NIGHT
Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening.

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 PM CDT 9/ 7/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
8 SEP 2026

1 AM

84°

95°

Clear

6%

0% Thunder
( 12% severe)

SSE 7

82%

78°

Low 80°

4 AM

82°

91°

Partly Cloudy

S 7

88%

78°

High 99°

7 AM

81°

88°

Partly Cloudy

8%

0% Thunder
( 16% severe)

SSE 5

88%

77°

Partly Cloudy

10 AM

89°

102°

Partly Cloudy

SSE 7

68%

77°

1 PM

95°

108°

Partly Cloudy

16%
RAIN
.25–.5 in

0% Thunder
( 37% severe)

SE 12

54%

76°

4 PM

94°

107°

Partly Cloudy

ESE 15

56%

76°

7 PM

88°

99°

Partly Cloudy

2%

0% Thunder
( 9% severe)

ESE 14

68%

76°

10 PM

85°

96°

Partly Cloudy

SE 8

77%

77°

Wednesday
9 SEP 2026

1 AM

83°

93°

Clear

5%

0% Thunder
( 18% severe)

SSE 6

85%

78°

Low 80°

4 AM

82°

91°

Clear

SE 3

88%

78°

High 99°

7 AM

80°

86°

Clear

12%
RAIN
<.01 in

0% Thunder
( 20% severe)

SE 3

91%

77°

Partly Cloudy

Chance of Rain

10 AM

89°

102°

Partly Cloudy

SE 5

68%

77°

1 PM

94°

106°

Mostly Cloudy

24%
RAIN
<.01 in

0% Thunder
( 36% severe)

ESE 9

54%

75°

4 PM

93°

106°

Partly Cloudy

ESE 13

58%

76°

7 PM

88°

99°

Partly Cloudy

1%

0% Thunder
( 7% severe)

ESE 12

68%

76°

10 PM

84°

94°

Partly Cloudy

SE 7

80%

77°


BROWNSVILLE, TX extended weather forecast
BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE
Low 80°	Low 80°	Low 79°	Low 80°	Low 81°
High 97°	High 98°	High 97°	High 96°	High 96°

Partly Cloudy 32% Rain	Partly Cloudy 25% Rain	Partly Cloudy 25% Rain	Partly Cloudy 27% Rain	Partly Cloudy 26% Rain

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