Water Temperature of the Medina River in San Antonio, TX

Current Water Temperature

64.9°F

Measurement Time: Saturday, January 17, 2026, 12:15 AM CST

Temperature Locations

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Medina River

Station Name: Medina Rv at San Antonio, TX
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 486 feet

Nearest Address:
16081 Pleasanton Rd
San Antonio, TX 78221
Bexar County

GPS Coordinates: 29.2641276, -98.4908493

Nearby Water Temperatures

Medina River, San Antonio, TX (5.5 mi)
San Antonio River, Elmendorf, TX (8.6 mi)
San Antonio River, Runge, TX (53.8 mi)
Jacob's Well Spring, Wimberley, TX (57.6 mi)
Frio River, Concan, TX (74.7 mi)
San Antonio River, Goliad, TX (79.2 mi)
Barton Springs, Austin, TX (81.4 mi)
Nueces River, San Patricio, TX (101.4 mi)
Nueces River, Odem, TX (108.1 mi)
Rincon Bayou Channel, Odem, TX (108.3 mi)
Viola Turning Basin, Corpus Christi, TX (114.3 mi)
Neuces Bay, Corpus Christi, TX (116.2 mi)
Corpus Christi Bay, Portland, TX (120.4 mi)
Corpus Christi Bay, Corpus Christi, TX (120.6 mi)
Lavaca Bay, Port Lavaca, TX (121.6 mi)

Weather for San Antonio, Texas

Current Weather

45°F
Overcast
Overcast
38.1°F
48.2°F
24%
ENE 15.2 mph
22.4 mph
42.8°F
27.4°F
0 in
0%
9 mi
1022 mbar
0

Five Day Weather Forecast

Overcast
Sat
H: 51°F
L: 45°F
Sunny
Sun
H: 60°F
L: 36°F
Patchy rain nearby
Mon
H: 63°F
L: 42°F
Patchy rain nearby
Tue
H: 52°F
L: 44°F
Moderate rain
Wed
H: 50°F
L: 45°F

Air Quality

PM2.5: 2.75 μg/m3
PM10: 3.05 μg/m3
Carbon Monoxide: 156.85 μg/m3
Nitrogen Dioxide: 6.65 μg/m3
Sulphur Dioxide: 5.05 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:44 AM
Sunset: 6:00 PM
Daylight: 10 hrs 31 mins
Moonrise: 6:51 AM
Moon Transit: 11:53 AM
Moonset: 5:00 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:23 AM - 1:53 PM

Minor Periods

4:30 PM - 6:00 PM
6:21 AM - 7:51 AM

Action Rating: 5 out of 5

Red Flag Warning issued January 17 at 12:05AM CST until January 17 at 8:00PM CST by NWS Austin/San Antonio TX

Effective: Sat January 17, 2026, 12:05 AM
Expires: Sat January 17, 2026, 8:00 PM

...CRITICAL FIRE WEATHER CONDITIONS EXPECTED TODAY... .Gusty north winds and dry air along with increasing fire danger will lead to critical fire weather conditions across all of South Central Texas today. * AFFECTED AREA...All of South Central Texas. * TIMING...From 10 AM this morning to 8 PM CST this evening. * WINDS...North to northeast 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.

A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.


Freeze Warning issued January 16 at 11:55PM CST until January 18 at 9:00AM CST by NWS Austin/San Antonio TX

Effective: Fri January 16, 2026, 11:55 PM
Expires: Sat January 17, 2026, 2:00 PM

* WHAT...Sub-freezing temperatures as low as 26 to 32 degrees are expected. * WHERE...Atascosa, Bexar, Dimmit, Frio, Karnes, Maverick, Wilson, and Zavala Counties. * WHEN...From 2 AM to 9 AM CST Sunday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.


Saturday, January 17, 2026

Weather Forecast

Overcast
50.5°F
45.4°F
48.7°F
32%
0 in
0%
0%
18.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 4.46 μg/m3
PM10: 4.59 μg/m3
Carbon Monoxide: 183.84 μg/m3
Nitrogen Dioxide: 11.85 μg/m3
Sulphur Dioxide: 4.68 μg/m3
Ozone: 72.84 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:44 AM
Sunset: 6:00 PM
Daylight: 10 hrs 31 mins
Moonrise: 6:51 AM
Moon Transit: 11:53 AM
Moonset: 5:00 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:23 AM - 1:53 PM

Minor Periods

4:30 PM - 6:00 PM
6:21 AM - 7:51 AM

Action Rating: 5 out of 5

Sunday, January 18, 2026

Weather Forecast

Sunny
59.5°F
36.3°F
46.1°F
31%
0 in
0%
0%
10.7 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 10.16 μg/m3
PM10: 10.6 μg/m3
Carbon Monoxide: 259.68 μg/m3
Nitrogen Dioxide: 32.37 μg/m3
Sulphur Dioxide: 4.59 μg/m3
Ozone: 42.69 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:44 AM
Sunset: 6:01 PM
Daylight: 10 hrs 32 mins
Moonrise: 7:35 AM
Moon Transit: 12:45 AM
Moonset: 6:00 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:15 AM - 2:45 PM

Minor Periods

5:30 PM - 7:00 PM
7:05 AM - 8:35 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Patchy rain nearby
62.8°F
42°F
48.4°F
71%
0 in
81%
0%
11.4 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:44 AM
Sunset: 6:02 PM
Daylight: 10 hrs 33 mins
Moonrise: 8:14 AM
Moon Transit: 1:34 PM
Moonset: 7:01 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:04 PM - 3:34 PM

Minor Periods

6:31 PM - 8:01 PM
7:44 AM - 9:14 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Patchy rain nearby
51.7°F
44.2°F
48.5°F
89%
0.12 in
89%
0%
17.9 mph
2


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:45 AM
Sunset: 6:02 PM
Daylight: 10 hrs 35 mins
Moonrise: 8:49 AM
Moon Transit: 2:21 PM
Moonset: 8:01 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

12:18 AM - 2:48 AM
1:51 PM - 4:21 PM

Minor Periods

7:31 PM - 9:01 PM
8:19 AM - 9:49 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Moderate rain
50.1°F
44.8°F
47.6°F
93%
0.37 in
84%
0%
13.4 mph
2


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:45 AM
Sunset: 6:03 PM
Daylight: 10 hrs 36 mins
Moonrise: 9:20 AM
Moon Transit: 3:06 PM
Moonset: 9:00 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

1:04 AM - 3:34 AM
2:36 PM - 5:06 PM

Minor Periods

8:30 PM - 10:00 PM
8:50 AM - 10:20 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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