Rio Grande City, TX Weather · Forecast Rio Grande Valley

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Rio Grande City climate normals

1996–2025 · Starr County

Starr County	J	F	M	A	M	J	J	A	S	O	N	D	Year
Avg high °F	71	76	82	88	94	98	98	100	94	88	79	72	87
Avg low °F	48	52	59	65	71	75	76	76	72	65	57	50	64
Precip in	0.7	0.7	1.3	1.4	2.6	2.2	2.3	1.8	4.4	1.8	1.4	0.9	21.5

1996–2025 normals for Starr County — the climate division Rio Grande City sits in. All-time county record high 110.9°F (2023-06-20); record low 12.1°F (1962-01-12). Source: NOAA / National Weather Service.

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Starr County Climate

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