BROWNSVILLE, TX 78521 Weather Forecast & Current Conditions

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78521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
BROWNSVILLE, TX Current Weather
9:53 PM CDT SEP 4, 2026
Clear 86°F
Feels Like:	100°F
Dewpoint:	79°F
Rel. Hum.:	80%
Visibility:	10 miles
Wind:	SE at 8 mph
Pressure:	29.89 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. Hot. Near steady temperature in the upper 90s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 113.

TONIGHT
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 108 early in the evening.

SATURDAY
Mostly sunny. Hot with highs around 100. Southeast winds 10 to 15 mph. Heat index values up to 113.

SATURDAY NIGHT
Partly cloudy. Humid with lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph, becoming south around 5 mph after midnight. Heat index values up to 107 early in the evening.

SUNDAY
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 10 to 15 mph with gusts up to 20 mph in the afternoon. Chance of rain 40 percent. Heat index values up to 112.

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

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

MONDAY NIGHT
Mostly clear. Lows in the upper 70s.

TUESDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 30 percent. Heat index values up to 110.

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

WEDNESDAY
Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 90s. Chance of rain 40 percent. Heat index values up to 110.

WEDNESDAY NIGHT
Partly cloudy. Lows in the upper 70s. Heat index values up to 105 early in the evening.

THURSDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 30 percent. 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 9/ 4/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
4 SEP 2026

1 PM

96°

107°

Partly Cloudy

1%

0% Thunder
( 16% severe)

SSE 15

49%

74°

High 97°

4 PM

95°

107°

Partly Cloudy

SE 17

53%

75°

Partly Cloudy

7 PM

89°

101°

Partly Cloudy

0%

0% Thunder
( 4% severe)

SE 15

66%

76°

10 PM

85°

96°

Partly Cloudy

SE 10

77%

77°

Saturday
5 SEP 2026

1 AM

84°

94°

Partly Cloudy

3%

0% Thunder
( 10% severe)

SSE 8

80%

77°

Low 82°

4 AM

82°

91°

Clear

SSE 7

88%

78°

High 100°

7 AM

82°

90°

Partly Cloudy

4%

0% Thunder
( 15% severe)

SSE 7

85%

77°

Partly Cloudy

10 AM

90°

103°

Partly Cloudy

SSE 9

66%

77°

1 PM

95°

106°

Partly Cloudy

14%
RAIN
<.01 in

0% Thunder
( 24% severe)

SSE 12

51%

74°

4 PM

95°

107°

Partly Cloudy

SE 15

53%

75°

7 PM

89°

101°

Partly Cloudy

1%

0% Thunder
( 7% severe)

SE 14

66%

76°

10 PM

85°

96°

Partly Cloudy

SE 8

77%

77°

Sunday
6 SEP 2026

1 AM

83°

92°

Partly Cloudy

3%

0% Thunder
( 13% severe)

SSE 6

82%

77°

Low 81°

4 AM

82°

90°

Partly Cloudy

S 6

85%

77°

High 99°

7 AM

81°

88°

Mostly Cloudy

15%
RAIN
.01–.1 in

0% Thunder
( 16% severe)

SSE 5

88%

77°

Partly Cloudy

Chance of Rain

10 AM

89°

102°

Partly Cloudy

SSE 7

68%

77°

1 PM

94°

106°

Partly Cloudy

32%
RAIN
.5–1 in

0% Thunder
( 33% severe)

SE 10

54%

75°

4 PM

93°

105°

Partly Cloudy

SE 14

56%

75°

7 PM

88°

98°

Partly Cloudy

SE 12

66%

75°


BROWNSVILLE, TX extended weather forecast
Monday 7 SEP 2026	Tuesday 8 SEP 2026	Wednesday 9 SEP 2026	Thursday 10 SEP 2026	Friday 11 SEP 2026
Low 80°	Low 79°	Low 78°	Low 78°	Low 77°
High 96°	High 96°	High 95°	High 95°	High 93°

Partly Cloudy 33% Rain	Mostly Cloudy 37% Rain	Overcast 55% Rain	Partly Cloudy 30% Rain	Partly Cloudy 31% Rain

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