Water Temperature of the Medina River in San Antonio, TX

Current Water Temperature

66.6°F

Measurement Time: Thursday, February 26, 2026, 8:45 AM CST

Temperature Locations

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Local Points of Interest

Medina River Natural Area

Medina River

Station 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

97°F
Sunny
Sunny
94.2°F
96.6°F
10%
N 9.4 mph
10.8 mph
98.4°F
45.5°F
0 in
0%
9 mi
1004 mbar
4

Five Day Weather Forecast

Sunny
Thu
H: 101°F
L: 55°F
Sunny
Fri
H: 88°F
L: 60°F
Mist
Sat
H: 84°F
L: 58°F
Overcast
Sun
H: 72°F
L: 62°F
Partly Cloudy
Mon
H: 83°F
L: 60°F

Air Quality

AQI: 1 - Good
PM2.5: 11.25 μg/m3
PM10: 11.85 μg/m3
Carbon Monoxide: 229.85 μg/m3
Nitrogen Dioxide: 24.65 μg/m3
Sulphur Dioxide: 3.45 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:47 AM
Sunset: 6:32 PM
Daylight: 11 hrs 30 mins
Moonrise: 1:38 PM
Moon Transit: 9:04 PM
Moonset: 3:30 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

6:51 AM - 9:21 AM
8:34 PM - 11:04 PM

Minor Periods

1:08 PM - 2:38 PM
3:00 AM - 4:30 AM

Action Rating: 3 out of 5

Red Flag Warning issued February 25 at 9:36PM CST until February 26 at 7:00PM CST by NWS Austin/San Antonio TX

Effective: Wed February 25, 2026, 9:36 PM
Expires: Thu February 26, 2026, 7:00 PM

...CRITICAL FIRE WEATHER CONDITIONS EXPECTED TOMORROW... .Breezy to gusty winds and dry air behind a cold front tomorrow will result in critical fire weather conditions for the western portions of South Central Texas. * AFFECTED AREA...The Rio Grande Plains, Hill Country, and Edwards Plateau.. * TIMING...From 11 AM to 7 PM CST Thursday. * WINDS...North 15 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 12 percent. * TEMPERATURES...Up to 95. * IMPACTS...Any fire that develops will catch and spread quickly. 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.


Red Flag Warning issued February 26 at 11:11AM CST until February 26 at 7:00PM CST by NWS Austin/San Antonio TX

Effective: Thu February 26, 2026, 11:11 AM
Expires: Thu February 26, 2026, 7:00 PM

...CRITICAL FIRE WEATHER CONDITIONS EXPECTED TODAY... .Breezy to gusty winds and dry air behind a cold front will result in critical fire weather conditions for the western portions of South Central Texas through early this evening. * AFFECTED AREA...The Rio Grande Plains, Hill Country, and Edwards Plateau... * TIMING...Until 7 PM CST this evening. * WINDS...North 15 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 13 percent. * TEMPERATURES...Up to 96. * IMPACTS...Any fire that develops will catch and spread quickly. 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.
Thursday, February 26, 2026

Weather Forecast

Sunny
100.9°F
54.9°F
75.2°F
46%
0 in
0%
0%
14.3 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 9.85 μg/m3
PM10: 10.45 μg/m3
Carbon Monoxide: 181.57 μg/m3
Nitrogen Dioxide: 12.39 μg/m3
Sulphur Dioxide: 3.33 μg/m3
Ozone: 78.36 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:47 AM
Sunset: 6:32 PM
Daylight: 11 hrs 30 mins
Moonrise: 1:38 PM
Moon Transit: 9:04 PM
Moonset: 3:30 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

6:51 AM - 9:21 AM
8:34 PM - 11:04 PM

Minor Periods

1:08 PM - 2:38 PM
3:00 AM - 4:30 AM

Action Rating: 3 out of 5

Friday, February 27, 2026

Weather Forecast

Sunny
87.8°F
59.5°F
72.3°F
68%
0 in
0%
0%
12.3 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 10.31 μg/m3
PM10: 11.1 μg/m3
Carbon Monoxide: 184.61 μg/m3
Nitrogen Dioxide: 10.46 μg/m3
Sulphur Dioxide: 2.85 μg/m3
Ozone: 82.24 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:46 AM
Sunset: 6:33 PM
Daylight: 11 hrs 31 mins
Moonrise: 2:46 PM
Moon Transit: 10:03 PM
Moonset: 4:26 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

7:52 AM - 10:22 AM
12:00 AM - 12:00 AM

Minor Periods

2:16 PM - 3:46 PM
3:56 AM - 5:26 AM

Action Rating: 2 out of 5

Saturday, February 28, 2026

Weather Forecast

Mist
84°F
57.6°F
67°F
79%
0 in
0%
0%
16.8 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 9.2 μg/m3
PM10: 10.35 μg/m3
Carbon Monoxide: 152.65 μg/m3
Nitrogen Dioxide: 7.53 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 76.52 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 12:46 AM
Sunset: 6:34 PM
Daylight: 11 hrs 33 mins
Moonrise: 3:55 PM
Moon Transit: 10:58 PM
Moonset: 5:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

8:50 AM - 11:20 AM
12:00 AM - 12:00 AM

Minor Periods

3:25 PM - 4:55 PM
4:44 AM - 6:14 AM

Action Rating: 2 out of 5

Sunday, March 1, 2026

Weather Forecast

Overcast
71.7°F
61.7°F
65.9°F
85%
0 in
0%
0%
16.8 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 6.99 μg/m3
PM10: 8.31 μg/m3
Carbon Monoxide: 134.16 μg/m3
Nitrogen Dioxide: 4.19 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 82.76 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 12:46 AM
Sunset: 6:34 PM
Daylight: 11 hrs 35 mins
Moonrise: 5:01 PM
Moon Transit: 11:49 PM
Moonset: 5:55 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

9:43 AM - 12:13 AM
12:00 AM - 12:00 AM

Minor Periods

4:31 PM - 6:01 PM
5:25 AM - 6:55 AM

Action Rating: 3 out of 5

Monday, March 2, 2026

Weather Forecast

Partly Cloudy
82.8°F
59.6°F
69.1°F
73%
0 in
0%
0%
16.8 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 6.36 μg/m3
PM10: 7.63 μg/m3
Carbon Monoxide: 146.87 μg/m3
Nitrogen Dioxide: 4.45 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 81.54 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:46 AM
Sunset: 6:35 PM
Daylight: 11 hrs 36 mins
Moonrise: 6:04 PM
Moon Transit: 12:00 AM
Moonset: 6:30 AM
Moon Phase: Full
Moon Illumination: 99.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:32 AM - 1:02 PM

Minor Periods

5:34 PM - 7:04 PM
6:00 AM - 7:30 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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