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 23, 2026
Scattered Clouds 91°F
Feels Like:	105°F
Dewpoint:	77°F
Rel. Hum.:	64%
Visibility:	10 miles
Wind:	E at 15 mph, gusts to 26
Pressure:
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 slight chance of showers and thunderstorms. Near steady temperature in the mid 90s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent. Heat index values up to 108.

TONIGHT
Partly cloudy. Humid with lows in the upper 70s. East winds 10 to 15 mph with gusts up to 25 mph, diminishing to around 5 mph after midnight.

THURSDAY
Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Humid with highs in the mid 90s. East winds 10 to 15 mph. Gusts up to 25 mph in the afternoon. Chance of rain 40 percent. Heat index values up to 109.

THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. A chance of showers. Humid with lows in the upper 70s. East winds 10 to 15 mph with gusts up to 25 mph, diminishing to around 5 mph after midnight. Chance of rain 50 percent.

FRIDAY
Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Humid with highs in the mid 90s. East winds 10 to 15 mph. Chance of rain 40 percent. Heat index values up to 108.

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

SATURDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 40 percent. Heat index values up to 110.

SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 70s.

SUNDAY
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.

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

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

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

TUESDAY
Mostly 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 9/23/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
23 SEP 2026

1 PM

93°

103°

Mostly Cloudy

19%
RAIN
<.01 in

0% Thunder
( 28% severe)

ENE 14

54%

74°

High 94°

4 PM

93°

103°

Mostly Cloudy

ENE 15

54%

74°

Mostly Cloudy

7 PM

87°

97°

Partly Cloudy

5%

0% Thunder
( 19% severe)

E 12

68%

75°

10 PM

85°

95°

Partly Cloudy

E 7

75%

76°

Thursday
24 SEP 2026

1 AM

83°

91°

Partly Cloudy

35%
RAIN
***

0% Thunder
( 9% severe)

E 5

80%

76°

Low 81°

4 AM

82°

89°

Partly Cloudy

NE 3

82%

76°

High 97°

7 AM

81°

87°

Partly Cloudy

35%
RAIN
>2 in

0% Thunder
( 15% severe)

NE 3

85%

76°

Partly Cloudy

Chance of Rain

10 AM

88°

100°

Partly Cloudy

E 6

70%

77°

1 PM

93°

105°

Partly Cloudy

41%
RAIN
.25–.5 in

0% Thunder
( 31% severe)

ENE 12

56%

75°

4 PM

93°

105°

Partly Cloudy

ENE 14

56%

75°

7 PM

87°

98°

Mostly Cloudy

28%
RAIN
.1–.25 in

0% Thunder
( 17% severe)

ENE 12

70%

76°

10 PM

85°

96°

Partly Cloudy

E 7

77%

77°

Friday
25 SEP 2026

1 AM

83°

92°

Partly Cloudy

29%
RAIN
<.01 in

0% Thunder
( 19% severe)

E 5

82%

77°

Low 81°

4 AM

82°

90°

Partly Cloudy

ENE 3

85%

77°

High 97°

7 AM

81°

88°

Partly Cloudy

45%
RAIN
***

0% Thunder
( 20% severe)

ENE 5

88%

77°

Partly Cloudy

Chance of Rain

10 AM

88°

100°

Partly Cloudy

E 7

70%

77°

1 PM

92°

103°

Partly Cloudy

42%
RAIN
.01–.1 in

0% Thunder
( 31% severe)

E 12

58%

75°

4 PM

92°

103°

Partly Cloudy

E 14

58%

75°

7 PM

87°

98°

Partly Cloudy

E 12

70%

76°


BROWNSVILLE, TX extended weather forecast
Saturday 26 SEP 2026	Sunday 27 SEP 2026	Monday 28 SEP 2026	Tuesday 29 SEP 2026	Wednesday 30 SEP 2026
Low 78°	Low 77°	Low 77°	Low 78°	Low 75°
High 93°	High 94°	High 94°	High 94°	High 93°

Partly Cloudy 46% Rain	Partly Cloudy 38% Rain	Partly Cloudy 26% Rain	Partly Cloudy 21% Rain	Mostly Cloudy 38% Rain

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