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TEXAS · WILLACY COUNTY

Sebastian

The official National Weather Service forecast for Sebastian, at 26.3428°N, 97.7903°W, 0.6 miles from I-69.

20,037County population
WillacyCounty
I-690.6 mi to the Interstate
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Willacy County · forecast by NWS BRO

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THE WEATHER PAGESebastian on the road atlas, with today’s highs in ten-degree bands and every neighbouring town’s high and low. Turn the page to tonight’s lows, the week ahead, rain and snow, or the radar this minute; zoom in and every road, river and exit is there.All of Rio Grande ValleyRio Grande Valley cities

Forecast Texas›Rio Grande Valley›Sebastian

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Sebastian climate normals

1996–2025 · Willacy County
Willacy CountyJFMAMJJASONDYear
Avg high °F71747985909495969287797385
Avg low °F50546066727676767366595265
Precip in1.01.01.51.22.52.82.71.84.82.91.81.225.2

1996–2025 normals for Willacy County — the climate division Sebastian sits in. All-time county record high 104.6°F (2000-09-06); record low 14.9°F (1962-01-12). Source: NOAA / National Weather Service.

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