SEBASTIAN, TX 78594 Weather Forecast & Current Conditions

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HARLINGEN, TX
Current Weather

4:52 AM CDT APR 2, 2026
Broken Clouds
75°F
Feels Like: 75°F
Dewpoint: 70°F
Rel. Hum.: 84%
Visibility: 10 miles
Wind: SSE at 14 mph, gusts to 26
Pressure: 29.79 inches
Last 72 hours

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SEBASTIAN, TX 78594
Weather Forecast

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REST OF TONIGHT
Mostly cloudy. Near steady temperature in the lower 70s. Southeast winds around 15 mph with gusts up to 30 mph.
THURSDAY
Partly sunny in the morning, then clearing. Breezy with highs in the lower 90s. Southeast winds 15 to 25 mph with gusts up to 35 mph.
THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 70s. Southeast winds 15 to 20 mph with gusts up to 30 mph.
FRIDAY
Mostly sunny and breezy. Highs in the lower 90s. Southeast winds 15 to 25 mph with gusts up to 35 mph.
FRIDAY NIGHT
Mostly cloudy and breezy. Lows in the lower 70s. Southeast winds 15 to 25 mph, diminishing to 10 to 15 mph after midnight. Gusts up to 35 mph, decreasing to 30 mph after midnight.
SATURDAY
Partly sunny. Highs in the lower 90s.
SATURDAY NIGHT
Mostly cloudy. A chance of showers in the evening, then showers with a chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 80 percent.
SUNDAY
Showers. A chance of thunderstorms in the afternoon. Cooler with highs in the upper 70s. Chance of rain 90 percent.
SUNDAY NIGHT
Showers likely with a chance of thunderstorms in the evening, then showers likely after midnight. Lows in the upper 50s. Chance of rain 70 percent.
MONDAY
Cloudy with a 50 percent chance of showers. Highs in the lower 70s.
MONDAY NIGHT
Mostly cloudy. Lows in the upper 50s.
TUESDAY
Mostly cloudy. Highs in the mid 70s.
TUESDAY NIGHT
Mostly cloudy. Lows in the upper 50s.

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  7:00 PM EST  4/ 1/2026
Thursday
2 APR 2026
SEBASTIAN, TX 78594 weather forecast Day 1, 0 hours 12 AM 72° 72° Mostly Cloudy 1%

0% Thunder
( 2% severe)
SSE   16 90% 69°
Low 71° SEBASTIAN, TX 78594 weather forecast Day 1, 3 hours 3 AM 72° 72° Mostly Cloudy SSE   17 87% 68°
High 91° SEBASTIAN, TX 78594 weather forecast Day 1, 6 hours 6 AM 72° 72° Mostly Cloudy 1%

0% Thunder
( 1% severe)
SSE   18 87% 68°

Decreasing Clouds




Windy
SEBASTIAN, TX 78594 weather forecast Day 1, 9 hours 9 AM 80° 83° Partly Cloudy SSE   23 69% 69°
SEBASTIAN, TX 78594 weather forecast Day 1, 12 hours 12 PM 88° 91° Clear 1%

0% Thunder
( 3% severe)
SSE   24 50% 67°
SEBASTIAN, TX 78594 weather forecast Day 1, 15 hours 3 PM 89° 92° Clear SSE   24 47% 66°
SEBASTIAN, TX 78594 weather forecast Day 1, 18 hours 6 PM 81° 84° Partly Cloudy 2%

0% Thunder
( 4% severe)
SE   22 65% 68°
SEBASTIAN, TX 78594 weather forecast Day 1, 21 hours 9 PM 74° 74° Mostly Cloudy SE   20 84% 69°
Friday
3 APR 2026
SEBASTIAN, TX 78594 weather forecast Day 2, 0 hours 12 AM 73° 73° Mostly Cloudy 3%

0% Thunder
( 4% severe)
SSE   18 87% 69°
Low 69° SEBASTIAN, TX 78594 weather forecast Day 2, 3 hours 3 AM 72° 72° Mostly Cloudy SSE   16 87% 68°
High 91° SEBASTIAN, TX 78594 weather forecast Day 2, 6 hours 6 AM 73° 73° Mostly Cloudy 1%

0% Thunder
( 3% severe)
SSE   15 84% 68°

Mostly Cloudy




Windy
SEBASTIAN, TX 78594 weather forecast Day 2, 9 hours 9 AM 79° 82° Mostly Cloudy SSE   21 72% 69°
SEBASTIAN, TX 78594 weather forecast Day 2, 12 hours 12 PM 88° 90° Partly Cloudy 1%

0% Thunder
( 5% severe)
SSE   24 48% 66°
SEBASTIAN, TX 78594 weather forecast Day 2, 15 hours 3 PM 89° 92° Partly Cloudy SE   26 47% 66°
SEBASTIAN, TX 78594 weather forecast Day 2, 18 hours 6 PM 81° 84° Mostly Cloudy 5%

0% Thunder
( 8% severe)
SE   23 67% 69°
SEBASTIAN, TX 78594 weather forecast Day 2, 21 hours 9 PM 75° 75° Mostly Cloudy SE   21 84% 70°

HARLINGEN, TX extended weather forecast

Saturday
4 APR 2026
Sunday
5 APR 2026
Monday
6 APR 2026
Tuesday
7 APR 2026
Wednesday
8 APR 2026
Low 73° Low 66° Low 56° Low 51° Low 54°
High 87° High 78° High 62° High 68° High 78°
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
Overcast
19% Rain
Overcast
69% Rain
Overcast
85% Rain
Overcast
54% Rain
Mostly Cloudy
25% Rain
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