Water Temperature of the Medina River in San Antonio, TX
Current Water Temperature
Measurement Time: Saturday, July 18, 2026, 4:45 AM CDT
Temperature Locations
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Local Points of Interest
Medina River Natural AreaStation Name: Medina Rv nr Somerset, TX
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 528 feet
Nearest Address:
Palo Alto Rd
San Antonio, TX 78264
Bexar County
GPS Coordinates: 29.26218286, -98.5814074
Nearby Water Temperatures
Medina River, San Antonio, TX (5.5 mi)San Antonio River, Elmendorf, TX (13.9 mi)
San Antonio River, Runge, TX (58.4 mi)
Jacob's Well Spring, Wimberley, TX (60 mi)
Frio River, Concan, TX (69.4 mi)
San Antonio River, Goliad, TX (83.8 mi)
Barton Springs, Austin, TX (84.5 mi)
Nueces River, San Patricio, TX (103.7 mi)
Nueces River, Odem, TX (110.7 mi)
Rincon Bayou Channel, Odem, TX (111 mi)
Viola Turning Basin, Corpus Christi, TX (117.1 mi)
Neuces Bay, Corpus Christi, TX (119.1 mi)
Corpus Christi Bay, Corpus Christi, TX (123.6 mi)
Corpus Christi Bay, Portland, TX (123.7 mi)
Aransas Bay, Rockport, TX (126.5 mi)
Weather for San Antonio, Texas
Current Weather

Five Day Weather Forecast

Sat
H: 101°F
L: 76°F

Sun
H: 98°F
L: 76°F

Mon
H: 101°F
L: 72°F

Tue
H: 101°F
L: 73°F

Wed
H: 100°F
L: 75°F
Air Quality
Nitrogen Dioxide: 1.9 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 48 μg/m3
Astronomical
Sun Transit: 1:40 PM
Sunset: 8:34 PM
Daylight: 13 hrs 47 mins
Moon Transit: 5:30 PM
Moonset: 12:06 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%
Best Times for Fishing or Hunting
Major Periods
3:27 AM - 5:57 AM5:00 PM - 7:30 PM
Minor Periods
10:48 AM - 12:18 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Flood Warning issued July 17 at 9:07PM CDT until July 18 at 8:23AM CDT by NWS Austin/San Antonio TX
Effective: Fri July 17, 2026, 9:07 PM
Expires: Sat July 18, 2026, 8:30 AM
...The Flood Warning continues for the following rivers in Texas... San Antonio River at Hwy 72 near Runge affecting Karnes and Goliad Counties. Cibolo Creek Near Falls City affecting Karnes County. Cibolo Creek at Sutherland Springs affecting Karnes and Wilson Counties. * WHAT...Minor flooding is occurring. * WHERE...Cibolo Creek at Sutherland Springs. * WHEN...Until tomorrow morning. * ADDITIONAL DETAILS... - At 8:15 PM CDT Friday the stage was 21.1 feet. - Bankfull stage is 17.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:15 PM CDT Friday was 33.1 feet. - Forecast...The river is expected to fall to 7.4 feet Wednesday evening. - Flood stage is 21.0 feet. - http://www.weather.gov/safety/flood
Caution is urged when walking near riverbanks. Be especially cautious at night when it is harder to recognize the dangers of flooding. Flooding is occurring or is imminent. Most flood related deaths occur in automobiles. Do not attempt to cross water covered bridges, dips, or low water crossings. Never try to cross a flowing stream, even a small one, on foot. To escape rising water find another route over higher ground. Additional information is available at www.weather.gov. The next statement will be issued Saturday morning by 830 AM CDT.
Flood Warning issued July 17 at 9:07PM CDT until July 19 at 8:07AM CDT by NWS Austin/San Antonio TX
Effective: Fri July 17, 2026, 9:07 PM
Expires: Sat July 18, 2026, 3:15 PM
...The Flood Warning continues for the following rivers in Texas... San Antonio River at Hwy 72 near Runge affecting Karnes and Goliad Counties. Cibolo Creek Near Falls City affecting Karnes County. Cibolo Creek at Sutherland Springs affecting Karnes and Wilson Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Cibolo Creek near Falls City. * WHEN...Until Sunday morning. * IMPACTS...At 25.0 feet, Major lowland flooding of crop and pasturelands cut off many livestock and potentially drown them. Widespread flooding reaches secondary and primary roads, low bridges and crossings. Most of the Goliad State Park facilities downstream are under water. * ADDITIONAL DETAILS... - At 8:15 PM CDT Friday the stage was 23.3 feet. - Bankfull stage is 6.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:15 PM CDT Friday was 23.3 feet. - Forecast...The river is expected to rise to a crest of 23.5 feet late this evening. It will then fall below flood stage tomorrow evening. - Flood stage is 17.0 feet. - http://www.weather.gov/safety/flood
Caution is urged when walking near riverbanks. Be especially cautious at night when it is harder to recognize the dangers of flooding. Flooding is occurring or is imminent. Most flood related deaths occur in automobiles. Do not attempt to cross water covered bridges, dips, or low water crossings. Never try to cross a flowing stream, even a small one, on foot. To escape rising water find another route over higher ground. Additional information is available at www.weather.gov. The next statement will be issued Saturday morning by 830 AM CDT.
Flood Warning issued July 18 at 2:52AM CDT until July 19 at 8:30AM CDT by NWS Austin/San Antonio TX
Effective: Sat July 18, 2026, 2:52 AM
Expires: Sat July 18, 2026, 9:00 PM
...The Flood Warning is extended for the following rivers in Texas... Cibolo Creek Near Falls City affecting Karnes County. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Cibolo Creek near Falls City. * WHEN...Until tomorrow morning. * IMPACTS...At 25.0 feet, Major lowland flooding of crop and pasturelands cut off many livestock and potentially drown them. Widespread flooding reaches secondary and primary roads, low bridges and crossings. Most of the Goliad State Park facilities downstream are under water. * ADDITIONAL DETAILS... - At 2:15 AM CDT Saturday the stage was 23.1 feet. - Bankfull stage is 6.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 2:15 AM CDT Saturday was 23.5 feet. - Forecast...The river is expected to fall below flood stage this evening and continue falling to 1.9 feet early Thursday morning. - Flood stage is 17.0 feet. - Flood History...This crest compares to a previous crest of 23.1 feet on 06/17/1981. - http://www.weather.gov/safety/flood
Be especially cautious at night when it is harder to recognize the dangers of flooding. Flooding is occurring or is imminent. Most flood related deaths occur in automobiles. Do not attempt to cross water covered bridges, dips, or low water crossings. Never try to cross a flowing stream, even a small one, on foot. To escape rising water find another route over higher ground. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued this evening by 900 PM CDT.
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.5 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 51.96 μg/m3
Astronomical
Sun Transit: 1:40 PM
Sunset: 8:34 PM
Daylight: 13 hrs 47 mins
Moon Transit: 5:30 PM
Moonset: 12:06 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%
Best Times for Fishing or Hunting
Major Periods
3:27 AM - 5:57 AM5:00 PM - 7:30 PM
Minor Periods
10:48 AM - 12:18 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.52 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 55.42 μg/m3
Astronomical
Sun Transit: 1:40 PM
Sunset: 8:34 PM
Daylight: 13 hrs 46 mins
Moon Transit: 6:14 PM
Moonset: 12:36 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%
Best Times for Fishing or Hunting
Major Periods
4:11 AM - 6:41 AM5:44 PM - 8:14 PM
Minor Periods
11:47 AM - 1:17 PM12:00 AM - 12:00 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.6 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 51.54 μg/m3
Astronomical
Sun Transit: 1:40 PM
Sunset: 8:34 PM
Daylight: 13 hrs 45 mins
Moon Transit: 6:57 PM
Moonset: 12:05 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%
Best Times for Fishing or Hunting
Major Periods
4:55 AM - 7:25 AM6:27 PM - 8:57 PM
Minor Periods
12:44 AM - 2:14 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.68 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 52.71 μg/m3
Astronomical
Sun Transit: 1:40 PM
Sunset: 8:33 PM
Daylight: 13 hrs 44 mins
Moon Transit: 7:41 PM
Moonset: 12:35 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%
Best Times for Fishing or Hunting
Major Periods
5:38 AM - 8:08 AM7:11 PM - 9:41 PM
Minor Periods
1:42 PM - 3:12 PM12:05 AM - 1:35 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.16 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 26.38 μg/m3
Astronomical
Sun Transit: 1:40 PM
Sunset: 8:33 PM
Daylight: 13 hrs 43 mins
Moon Transit: 8:27 PM
Moonset: 1:07 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%
Best Times for Fishing or Hunting
Major Periods
6:23 AM - 8:53 AM7:57 PM - 10:27 PM
Minor Periods
2:39 PM - 4:09 PM12:37 AM - 2:07 AM
Action Rating: 3 out of 5
