Water Temperature of the San Antonio River in Elmendorf, TX

Current Water Temperature

82.0°F

Measurement Time: Tuesday, July 14, 2026, 9:30 PM CDT

Temperature Locations

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Local Points of Interest

River Crossing Park; Graytown, TX

San Antonio River

Station Name: San Antonio Rv nr Elmendorf, TX
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 423 feet

Nearest Address:
6900 State Loop 1604
Elmendorf, TX 78112
Bexar County

GPS Coordinates: 29.2221853, -98.3558463

Nearby Water Temperatures

Medina River, San Antonio, TX (8.6 mi)
Medina River, San Antonio, TX (13.9 mi)
San Antonio River, Runge, TX (45.4 mi)
Jacob's Well Spring, Wimberley, TX (57.8 mi)
San Antonio River, Goliad, TX (70.8 mi)
Barton Springs, Austin, TX (80 mi)
Frio River, Concan, TX (83.3 mi)
Nueces River, San Patricio, TX (95.5 mi)
Nueces River, Odem, TX (101.7 mi)
Rincon Bayou Channel, Odem, TX (101.9 mi)
Viola Turning Basin, Corpus Christi, TX (107.7 mi)
Neuces Bay, Corpus Christi, TX (109.6 mi)
Lavaca Bay, Port Lavaca, TX (113 mi)
Corpus Christi Bay, Portland, TX (113.2 mi)
Corpus Christi Bay, Corpus Christi, TX (113.7 mi)

Weather for Elmendorf, Texas

Current Weather

79°F
Light rain
Light rain
86.3°F
82.5°F
90%
ENE 6.3 mph
10.9 mph
77°F
75°F
0 in
100%
9 mi
1017 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 78°F
L: 72°F
Light rain shower
Thu
H: 86°F
L: 71°F
Sunny
Fri
H: 87°F
L: 73°F
Sunny
Sat
H: 94°F
L: 73°F
Sunny
Sun
H: 96°F
L: 74°F

Air Quality

AQI: 1 - Good
PM2.5: 11.8 μg/m3
PM10: 17.3 μg/m3
Carbon Monoxide: 98 μg/m3
Nitrogen Dioxide: 3.4 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 34 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:39 PM
Sunset: 8:35 PM
Daylight: 13 hrs 50 mins
Moonrise: 8:01 AM
Moon Transit: 3:03 PM
Moonset: 9:56 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:54 AM - 3:24 AM
2:33 PM - 5:03 PM

Minor Periods

9:26 PM - 10:56 PM
7:31 AM - 9:01 AM

Action Rating: 3 out of 5

Flood Warning issued July 14 at 3:01PM CDT until July 17 at 6:10AM CDT by NWS Austin/San Antonio TX

Effective: Tue July 14, 2026, 3:01 PM
Expires: Wed July 15, 2026, 9:15 AM

...The Flood Warning continues for the following rivers in Texas... Medina River At Hwy 281 affecting Bexar County. * WHAT...Minor flooding is forecast. * WHERE...Medina River at Hwy 281. * WHEN...From Wednesday evening to Friday morning. * IMPACTS...At 24.0 feet, Moderate lowland flooding floods secondary roads and bridges making them dangerous to traffic. * ADDITIONAL DETAILS... - At 2:15 PM CDT Tuesday the stage was 4.2 feet. - Bankfull stage is 16.0 feet. - Forecast...The river will rise to 8.8 feet late tonight. It will then fall to 7.9 feet early tomorrow afternoon. It will rise above flood stage late tomorrow evening to 23.5 feet Thursday morning. It will then fall below flood stage Thursday evening. - Flood stage is 20.0 feet. - Flood History...This crest compares to a previous crest of 23.8 feet on 05/06/1993. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued Wednesday morning by 915 AM CDT.


Flood Warning issued July 14 at 2:06PM CDT until July 17 at 6:11AM CDT by NWS Austin/San Antonio TX

Effective: Tue July 14, 2026, 2:06 PM
Expires: Wed July 15, 2026, 8:15 AM

...The National Weather Service in Austin/San Antonio TX has issued a Flood Warning for the following rivers in Texas... Medina River At Hwy 281 affecting Bexar County. * WHAT...Minor flooding is forecast. * WHERE...Medina River at Hwy 281. * WHEN...From Wednesday evening to Friday morning. * IMPACTS...At 24.0 feet, Moderate lowland flooding floods secondary roads and bridges making them dangerous to traffic. * ADDITIONAL DETAILS... - At 1:15 PM CDT Tuesday the stage was 4.1 feet. - Bankfull stage is 16.0 feet. - Forecast...The river will rise to 8.8 feet late tonight. It will then fall to 7.9 feet early tomorrow afternoon. It will rise above flood stage late tomorrow evening to 23.5 feet Thursday morning. It will then fall below flood stage Thursday evening. - Flood stage is 20.0 feet. - Flood History...This crest compares to a previous crest of 23.8 feet on 05/06/1993. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued Wednesday morning by 815 AM CDT.


Flood Watch issued July 14 at 1:59PM CDT until July 16 at 7:00PM CDT by NWS Austin/San Antonio TX

Effective: Tue July 14, 2026, 1:59 PM
Expires: Thu July 16, 2026, 7:00 AM

* WHAT...Flooding and flash flooding caused by excessive rainfall continues to be possible. * WHERE...Guadalupe County. * WHEN...Through Thursday evening. * IMPACTS...There is a potential for life threatening flooding somewhere in the watch area. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. Extensive street flooding and flooding of creeks and rivers are possible. * ADDITIONAL DETAILS... - Intense rainfall rates and compounding effects from multiple rounds of storms will result in a dangerous flash flooding threat through Thursday. Storm totals of 2 to 6 inches are possible over the Flood Watch area. - 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.


Flash Flood Warning issued July 14 at 6:20PM CDT until July 14 at 11:15PM CDT by NWS Austin/San Antonio TX

Effective: Tue July 14, 2026, 6:20 PM
Expires: Tue July 14, 2026, 11:15 PM

FFWEWX The National Weather Service in Austin/San Antonio has issued a * Flash Flood Warning for... Northwestern Bexar County in south central Texas... West Central Comal County in south central Texas... Southeastern Kendall County in south central Texas... * Until 1115 PM CDT. * At 620 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 2 to 4 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... San Antonio, Boerne, San Antonio Int Airport, Canyon Lake, Leon Valley, Helotes, Fair Oaks Ranch, Bulverde, Shavano Park, Hollywood Park, Cross Mountain, The Dominion, Leon Springs, Timberwood Park, Bergheim, Kreutzberg, Guadalupe River State Park, Walnut Grove, Spring Branch and Nelson City.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.


Wednesday, July 15, 2026

Weather Forecast

Patchy rain nearby
78.2°F
72.1°F
75.8°F
89%
2.81 in
86%
0%
12.8 mph
2.9


Air Quality

AQI: 1 - Good
PM2.5: 8.85 μg/m3
PM10: 13.48 μg/m3
Carbon Monoxide: 97.29 μg/m3
Nitrogen Dioxide: 1.83 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 46.83 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:39 PM
Sunset: 8:35 PM
Daylight: 13 hrs 50 mins
Moonrise: 8:01 AM
Moon Transit: 3:03 PM
Moonset: 9:56 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:54 AM - 3:24 AM
2:33 PM - 5:03 PM

Minor Periods

9:26 PM - 10:56 PM
7:31 AM - 9:01 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Light rain shower
85.6°F
71.4°F
76.7°F
84%
1.19 in
84%
0%
13.6 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 8.82 μg/m3
PM10: 15.23 μg/m3
Carbon Monoxide: 96.38 μg/m3
Nitrogen Dioxide: 1.43 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 53.46 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:39 PM
Sunset: 8:34 PM
Daylight: 13 hrs 49 mins
Moonrise: 9:10 AM
Moon Transit: 3:55 PM
Moonset: 10:33 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

1:50 AM - 4:20 AM
3:25 PM - 5:55 PM

Minor Periods

10:03 PM - 11:33 PM
8:40 AM - 10:10 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
86.8°F
72.6°F
79.2°F
79%
0.43 in
77%
0%
15.4 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 12.25 μg/m3
PM10: 25.39 μg/m3
Carbon Monoxide: 96.79 μg/m3
Nitrogen Dioxide: 1.51 μg/m3
Sulphur Dioxide: 0.55 μg/m3
Ozone: 53.5 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:39 PM
Sunset: 8:34 PM
Daylight: 13 hrs 48 mins
Moonrise: 10:16 AM
Moon Transit: 4:44 PM
Moonset: 11:05 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

2:41 AM - 5:11 AM
4:14 PM - 6:44 PM

Minor Periods

12:00 AM - 12:00 AM
9:46 AM - 11:16 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
93.9°F
73.4°F
82.3°F
68%
0 in
5%
0%
15.7 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 12.97 μg/m3
PM10: 26.71 μg/m3
Carbon Monoxide: 96.43 μg/m3
Nitrogen Dioxide: 1.45 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 54 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:39 PM
Sunset: 8:33 PM
Daylight: 13 hrs 47 mins
Moonrise: 11:17 AM
Moon Transit: 5:29 PM
Moonset: 12:05 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

3:28 AM - 5:58 AM
4:59 PM - 7:29 PM

Minor Periods

10:47 AM - 12:17 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
95.6°F
74.2°F
83.8°F
67%
0 in
5%
0%
16.1 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 12.05 μg/m3
PM10: 17.94 μg/m3
Carbon Monoxide: 95.88 μg/m3
Nitrogen Dioxide: 2.43 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 42.38 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:39 PM
Sunset: 8:33 PM
Daylight: 13 hrs 46 mins
Moonrise: 12:16 AM
Moon Transit: 6:13 PM
Moonset: 12:35 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
5:43 PM - 8:13 PM

Minor Periods

11:46 AM - 1:16 PM
12:00 AM - 12:00 AM

Action Rating: 4 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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