SEBASTIAN, TX 78594 Weather Forecast & Current Conditions

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HARLINGEN, TX
Current Weather

10:52 AM CDT MAY 28, 2026
Overcast
84°F
Feels Like: 94°F
Dewpoint: 77°F
Rel. Hum.: 80%
Visibility: 10 miles
Wind: ESE at 10 mph
Pressure: 29.92 inches
Last 72 hours

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SEBASTIAN, TX 78594
Weather Forecast

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Snow Depth pages
REST OF TONIGHT
Partly cloudy. Near steady temperature in the mid 70s. East winds around 5 mph.
THURSDAY
Mostly sunny. Humid with highs in the upper 80s. East winds around 5 mph, increasing to 10 to 15 mph with gusts up to 20 mph in the afternoon.
THURSDAY NIGHT
Partly cloudy. Humid with lows in the lower 70s. Southeast winds 5 to 10 mph. Gusts up to 20 mph in the evening.
FRIDAY
Mostly sunny. Humid with highs in the lower 90s. Southeast winds around 5 mph, increasing to east 10 to 15 mph with gusts up to 20 mph in the afternoon.
FRIDAY NIGHT
Partly cloudy. Lows in the mid 70s. Southeast winds 10 to 15 mph.
SATURDAY
Mostly sunny. Highs in the lower 90s.
SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 70s.
SUNDAY
Mostly sunny. Highs in the lower 90s.
SUNDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 70s.
MONDAY
Mostly sunny. Highs in the lower 90s.
MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s.
TUESDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 30 percent.
TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s.

Visible Weather Satellite
SEBASTIAN, TX 78594
Infrared Weather Satellite
SEBASTIAN, TX 78594
NEXRAD Weather Radar
SEBASTIAN, TX 78594

HARLINGEN, TX 3 hourly weather forecast

weather forecast created  8:00 PM EDT  5/27/2026
Thursday
28 MAY 2026
SEBASTIAN, TX 78594 weather forecast Day 1, 0 hours 1 AM 77° 78° Mostly Cloudy 7%

0% Thunder
( 12% severe)
E   6 94% 75°
Low 75° SEBASTIAN, TX 78594 weather forecast Day 1, 3 hours 4 AM 77° 78° Mostly Cloudy ENE   5 94% 75°
High 90° SEBASTIAN, TX 78594 weather forecast Day 1, 6 hours 7 AM 76° 76° Mostly Cloudy 5%

0% Thunder
( 15% severe)
NE   3 94% 74°

Partly Cloudy



SEBASTIAN, TX 78594 weather forecast Day 1, 9 hours 10 AM 83° 92° Partly Cloudy E   5 82% 77°
SEBASTIAN, TX 78594 weather forecast Day 1, 12 hours 1 PM 86° 97° Partly Cloudy 12%
RAIN
<.01 in
0% Thunder
( 19% severe)
ENE   8 75% 77°
SEBASTIAN, TX 78594 weather forecast Day 1, 15 hours 4 PM 87° 100° Partly Cloudy E   13 75% 78°
SEBASTIAN, TX 78594 weather forecast Day 1, 18 hours 7 PM 84° 94° Partly Cloudy 1%

0% Thunder
( 7% severe)
E   13 80% 77°
SEBASTIAN, TX 78594 weather forecast Day 1, 21 hours 10 PM 79° 83° Partly Cloudy ESE   7 91% 76°
Friday
29 MAY 2026
SEBASTIAN, TX 78594 weather forecast Day 2, 0 hours 1 AM 77° 78° Partly Cloudy 0%

0% Thunder
( 4% severe)
SE   3 94% 75°
Low 73° SEBASTIAN, TX 78594 weather forecast Day 2, 3 hours 4 AM 76° 76° Partly Cloudy SE   2 94% 74°
High 91° SEBASTIAN, TX 78594 weather forecast Day 2, 6 hours 7 AM 75° 75° Mostly Cloudy 1%

0% Thunder
( 10% severe)
  CALM 97% 74°

Partly Cloudy



SEBASTIAN, TX 78594 weather forecast Day 2, 9 hours 10 AM 83° 90° Partly Cloudy SSE   3 77% 75°
SEBASTIAN, TX 78594 weather forecast Day 2, 12 hours 1 PM 88° 97° Partly Cloudy 3%

0% Thunder
( 13% severe)
ESE   6 63% 74°
SEBASTIAN, TX 78594 weather forecast Day 2, 15 hours 4 PM 89° 99° Partly Cloudy E   13 64% 75°
SEBASTIAN, TX 78594 weather forecast Day 2, 18 hours 7 PM 84° 91° Partly Cloudy 0%

0% Thunder
( 6% severe)
ESE   14 72% 74°
SEBASTIAN, TX 78594 weather forecast Day 2, 21 hours 10 PM 79° 83° Partly Cloudy ESE   9 85% 74°

HARLINGEN, TX extended weather forecast

Saturday
30 MAY 2026
Sunday
31 MAY 2026
Monday
1 JUN 2026
Tuesday
2 JUN 2026
Wednesday
3 JUN 2026
Low 76° Low 74° Low 75° Low 74° Low 75°
High 96° High 94° High 91° High 91° High 92°
SEBASTIAN, TX 78594 weather forecast Day 3 SEBASTIAN, TX 78594 weather forecast Day 4 SEBASTIAN, TX 78594 weather forecast Day 5 SEBASTIAN, TX 78594 weather forecast Day 6 SEBASTIAN, TX 78594 weather forecast Day 7
Clear
8% Rain
Partly Cloudy
18% Rain
Partly Cloudy
33% Rain
Partly Cloudy
34% Rain
Partly Cloudy
30% Rain
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