BROWNSVILLE, TX 78521 Weather Forecast & Current Conditions

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78521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
BROWNSVILLE, TX Current Weather
10:53 AM CDT SEP 17, 2026
Scattered Clouds 93°F
Feels Like:	110°F
Dewpoint:	79°F
Rel. Hum.:	64%
Visibility:	10 miles
Wind:	N at 9 mph
Pressure:	30.11 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
Partly cloudy. Near steady temperature in the lower 80s. Light and variable winds.

THURSDAY
Mostly sunny with a slight chance of showers and thunderstorms. Humid with highs in the mid 90s. Northeast winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 110.

THURSDAY NIGHT
Mostly clear in the evening, then partly cloudy with a chance of showers after midnight. Humid with lows in the upper 70s. East winds 10 to 15 mph with gusts up to 20 mph, diminishing to around 5 mph after midnight. Chance of rain 40 percent. Heat index values up to 105 early in the evening.

FRIDAY
A chance of showers in the morning. Sunny with highs in the mid 90s. Northeast winds 10 to 15 mph. Chance of rain 40 percent. Heat index values up to 109.

FRIDAY NIGHT
Mostly clear. Humid with lows in the mid 70s. East winds 10 to 15 mph with gusts up to 20 mph in the evening, becoming light and variable.

SATURDAY
Sunny. Highs in the mid 90s. Heat index values up to 110.

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

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

SUNDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 70s. Heat index values up to 105 early in the evening.

MONDAY
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.

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

TUESDAY
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.

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

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 9/16/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Thursday
17 SEP 2026

1 AM

83°

93°

Clear

20%
RAIN
1–2 in

0% Thunder
( 21% severe)

CALM

85%

78°

Low 79°

4 AM

81°

89°

Partly Cloudy

CALM

91%

78°

High 97°

7 AM

80°

86°

Partly Cloudy

22%
RAIN
.5–1 in

0% Thunder
( 30% severe)

N 3

91%

77°

Partly Cloudy

Chance of Rain

10 AM

86°

97°

Partly Cloudy

NE 6

75%

77°

1 PM

92°

105°

Partly Cloudy

17%
RAIN
.5–1 in

0% Thunder
( 42% severe)

NE 10

60%

76°

4 PM

92°

105°

Partly Cloudy

ENE 13

60%

76°

7 PM

87°

99°

Partly Cloudy

12%
RAIN
<.01 in

0% Thunder
( 20% severe)

ENE 10

72%

77°

10 PM

84°

95°

Partly Cloudy

ENE 5

82%

78°

Friday
18 SEP 2026

1 AM

82°

91°

Partly Cloudy

26%
RAIN
<.01 in

0% Thunder
( 20% severe)

CALM

88%

78°

Low 80°

4 AM

81°

89°

Partly Cloudy

ENE 1

91%

78°

High 97°

7 AM

80°

86°

Partly Cloudy

32%
RAIN
.1–.25 in

0% Thunder
( 23% severe)

NNE 3

91%

77°

Partly Cloudy

Chance of Rain

10 AM

86°

97°

Partly Cloudy

ENE 5

75%

77°

1 PM

92°

103°

Partly Cloudy

9%

0% Thunder
( 31% severe)

ENE 12

58%

75°

4 PM

92°

103°

Partly Cloudy

ENE 14

58%

75°

7 PM

86°

95°

Clear

3%

0% Thunder
( 6% severe)

ENE 10

70%

75°

10 PM

83°

90°

Partly Cloudy

E 3

77%

75°


BROWNSVILLE, TX extended weather forecast
Saturday 19 SEP 2026	Sunday 20 SEP 2026	Monday 21 SEP 2026	Tuesday 22 SEP 2026	Wednesday 23 SEP 2026
Low 77°	Low 77°	Low 77°	Low 77°	Low 76°
High 94°	High 95°	High 96°	High 94°	High 93°

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

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