BROWNSVILLE, TX 78521 Weather Forecast & Current Conditions

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78521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
BROWNSVILLE, TX Current Weather
5:53 AM CDT SEP 12, 2026
Few Clouds 84°F
Feels Like:	96°F
Dewpoint:	79°F
Rel. Hum.:	85%
Visibility:	10 miles
Wind:	S at 10 mph
Pressure:	29.85 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. South winds 10 to 15 mph with gusts up to 30 mph.

SATURDAY
Sunny, breezy, hot with highs around 100. Southeast winds 15 to 25 mph with gusts up to 30 mph. Heat index values up to 114.

SATURDAY NIGHT
Mostly clear. Humid with lows in the lower 80s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Heat index values up to 109 early in the evening.

SUNDAY
Mostly sunny. Humid with highs in the upper 90s. Southeast winds 10 to 15 mph with gusts up to 30 mph. Heat index values up to 113.

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 107 early in the evening.

MONDAY
Sunny. Highs in the upper 90s. Heat index values up to 110.

MONDAY NIGHT
Mostly clear. Lows around 80. Heat index values up to 105 early.

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 110.

WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.

THURSDAY
Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 50 percent. Heat index values up to 110.

THURSDAY NIGHT
Partly cloudy. A chance of showers after midnight. Lows in the upper 70s. Chance of rain 40 percent. Heat index values up to 105 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 9/11/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Saturday
12 SEP 2026

1 AM

84°

94°

Clear

1%

0% Thunder
( 4% severe)

S 15

80%

77°

Low 82°

4 AM

83°

92°

Clear

S 12

82%

77°

High 100°

7 AM

83°

92°

Partly Cloudy

1%

0% Thunder
( 9% severe)

SSE 13

82%

77°

Partly Cloudy

Breezy

10 AM

91°

105°

Partly Cloudy

S 18

64%

77°

1 PM

96°

108°

Partly Cloudy

1%

0% Thunder
( 18% severe)

SSE 22

51%

75°

4 PM

95°

107°

Clear

SSE 21

53%

75°

7 PM

89°

102°

Clear

1%

0% Thunder
( 4% severe)

SE 18

68%

77°

10 PM

86°

98°

Partly Cloudy

SE 14

77%

78°

Sunday
13 SEP 2026

1 AM

85°

97°

Clear

10%
RAIN
.25–.5 in

0% Thunder
( 10% severe)

SSE 10

80%

78°

Low 82°

4 AM

84°

95°

Partly Cloudy

SSE 10

82%

78°

High 99°

7 AM

83°

93°

Partly Cloudy

14%
RAIN
.25–.5 in

0% Thunder
( 26% severe)

SE 9

85%

78°

Partly Cloudy

10 AM

90°

105°

Partly Cloudy

SSE 14

68%

78°

1 PM

94°

106°

Partly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 24% severe)

SSE 17

54%

75°

4 PM

95°

107°

Partly Cloudy

SE 17

53%

75°

7 PM

89°

102°

Clear

1%

0% Thunder
( 6% severe)

SE 15

68%

77°

10 PM

86°

98°

Partly Cloudy

SE 12

77%

78°


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 81°	Low 81°	Low 79°	Low 78°	Low 77°
High 97°	High 96°	High 96°	High 94°	High 94°

Partly Cloudy 22% Rain	Partly Cloudy 33% Rain	Partly Cloudy 24% Rain	Partly Cloudy 40% Rain	Partly Cloudy 40% Rain

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