Water Temperature of the Rio Grande in Roma, TX

Current Water Temperature

75.6°F

Measurement Time: Thursday, May 21, 2026, 8:15 AM CST

Temperature Locations

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Local Points of Interest

Ciudad Miguel Alemán, Mexico

Rio Grande

Station Name: Rio Grande at Roma, TX
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 164 feet

Nearest Address:
20 Sebastian St
Roma, TX 78584
Starr County

GPS Coordinates: 26.40034048, -99.0169745

Nearby Water Temperatures

Rio Grande, Rio Grande City, TX (14 mi)
Rio Grande, Mission, TX (40.8 mi)
Rio Grande, Mission, TX (43.4 mi)
Rio Grande, Mission, TX (46 mi)
Rio Grande, Mercedes, TX (73.1 mi)
Rio Grande, Los Indios, TX (81.4 mi)
Laguna Madre, Armstrong, TX (99.5 mi)
Laguna Madre, Bayview, TX (107.7 mi)
Port Isabel Channel, Port Isabel, TX (114.1 mi)
Laguna Madre, South Padre Island, TX (116.9 mi)
Baffin Bay, Kingsville, TX (117.1 mi)
Brownsville Ship Channel, South Padre Island, TX (117.7 mi)
Gulf Intracoastal Waterway, Corpus Christi, TX (128.7 mi)
Nueces River, San Patricio, TX (130.8 mi)
Nueces River, Odem, TX (134 mi)

Weather for Roma, Texas

Current Weather

78.3°F
Sunny
Sunny
81.6°F
91°F
71%
S 9.2 mph
11.4 mph
83.8°F
76.2°F
0 in
0%
9 mi
1013 mbar
8

Five Day Weather Forecast

Heavy rain
Thu
H: 90°F
L: 73°F
Patchy rain nearby
Fri
H: 98°F
L: 71°F
Moderate rain
Sat
H: 94°F
L: 78°F
Moderate rain
Sun
H: 94°F
L: 73°F
Patchy rain nearby
Mon
H: 97°F
L: 75°F

Air Quality

AQI: 1 - Good
PM2.5: 6.75 μg/m3
PM10: 7.85 μg/m3
Carbon Monoxide: 168.85 μg/m3
Nitrogen Dioxide: 4.05 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 12:32 AM
Sunset: 7:19 PM
Daylight: 13 hrs 33 mins
Moonrise: 10:42 AM
Moon Transit: 5:38 PM
Moonset: 12:46 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

3:26 AM - 5:56 AM
5:08 PM - 7:38 PM

Minor Periods

10:12 AM - 11:42 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Flood Watch issued May 21 at 8:09AM CDT until May 25 at 7:00AM CDT by NWS Brownsville TX

Effective: Thu May 21, 2026, 7:09 AM
Expires: Fri May 22, 2026, 7:15 AM

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...All of Deep South Texas and the Rio Grande Valley. * WHEN...Through Monday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris. * ADDITIONAL DETAILS... - Portions of Deep South Texas have already received 3 to 6 inches of rainfall over the last 48 hours. Additional rounds of heavy rainfall are possible through this weekend. Saturated soil and urban poor drainage could lead to isolated to scattered flash flooding. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Thursday, May 21, 2026

Weather Forecast

Heavy rain
90.2°F
72.5°F
79°F
77%
1.12 in
87%
0%
19.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.82 μg/m3
PM10: 8.51 μg/m3
Carbon Monoxide: 140.65 μg/m3
Nitrogen Dioxide: 3.78 μg/m3
Sulphur Dioxide: 1.71 μg/m3
Ozone: 59.68 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 12:32 AM
Sunset: 7:19 PM
Daylight: 13 hrs 33 mins
Moonrise: 10:42 AM
Moon Transit: 5:38 PM
Moonset: 12:46 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

3:26 AM - 5:56 AM
5:08 PM - 7:38 PM

Minor Periods

10:12 AM - 11:42 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Friday, May 22, 2026

Weather Forecast

Patchy rain nearby
98.3°F
70.5°F
83.5°F
59%
0.02 in
88%
0%
21.3 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 6.91 μg/m3
PM10: 8.32 μg/m3
Carbon Monoxide: 157.29 μg/m3
Nitrogen Dioxide: 3.71 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 65.44 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 12:32 AM
Sunset: 7:20 PM
Daylight: 13 hrs 34 mins
Moonrise: 11:46 AM
Moon Transit: 6:28 PM
Moonset: 12:29 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
5:58 PM - 8:28 PM

Minor Periods

11:16 AM - 12:46 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, May 23, 2026

Weather Forecast

Moderate rain
94.4°F
77.7°F
84.3°F
64%
0.27 in
85%
0%
21.7 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 6.43 μg/m3
PM10: 7.66 μg/m3
Carbon Monoxide: 157.01 μg/m3
Nitrogen Dioxide: 2.56 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 72.88 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 12:32 AM
Sunset: 7:20 PM
Daylight: 13 hrs 35 mins
Moonrise: 12:46 AM
Moon Transit: 7:15 PM
Moonset: 1:05 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

5:08 AM - 7:38 AM
6:45 PM - 9:15 PM

Minor Periods

12:16 AM - 1:46 PM
12:35 AM - 2:05 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Moderate rain
94°F
73.1°F
82.7°F
62%
0.2 in
87%
0%
13.4 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.24 μg/m3
PM10: 6.11 μg/m3
Carbon Monoxide: 157.71 μg/m3
Nitrogen Dioxide: 3.52 μg/m3
Sulphur Dioxide: 1.91 μg/m3
Ozone: 68.36 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:32 AM
Sunset: 7:21 PM
Daylight: 13 hrs 35 mins
Moonrise: 1:43 PM
Moon Transit: 7:58 PM
Moonset: 1:37 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

5:52 AM - 8:22 AM
7:28 PM - 9:58 PM

Minor Periods

1:13 PM - 2:43 PM
1:07 AM - 2:37 AM

Action Rating: 4 out of 5

Monday, May 25, 2026

Weather Forecast

Patchy rain nearby
96.9°F
74.6°F
82.6°F
67%
0.02 in
83%
0%
18.6 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 3.11 μg/m3
PM10: 3.33 μg/m3
Carbon Monoxide: 168.62 μg/m3
Nitrogen Dioxide: 3.07 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 69.77 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:33 AM
Sunset: 7:21 PM
Daylight: 13 hrs 36 mins
Moonrise: 2:38 PM
Moon Transit: 8:40 PM
Moonset: 2:08 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

6:35 AM - 9:05 AM
8:10 PM - 10:40 PM

Minor Periods

2:08 PM - 3:38 PM
1:38 AM - 3:08 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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