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Current Weather Conditions:
San Marcos, San Marcos Municipal Airport, TX, United States

NWS Point Forecast for KHYI (KHYI) 29-53-37N 097-51-53W

Conditions at

2026.08.21 1056 UTC
Wind Calm
Visibility 8 mile(s)
Sky conditions clear
Temperature 75.9 F (24.4 C)
Dew Point 73.9 F (23.3 C)
Relative Humidity 93%
Pressure (altimeter) 30.05 in. Hg (1017 hPa)
ob KHYI 211056Z 00000KT 8SM CLR 24/23 A3005 RMK AO2 SLP167 T02440233

Maximum and Minimum Temperatures

Maximum
Temperature
F (C)
Minimum
Temperature
F (C)
99.0 (37.2) 82.0 (27.8) In the 6 hours preceding Aug 21, 2026 - 01:56 AM EDT / 2026.08.21 0556 UTC
102.9 (39.4) 71.1 (21.7) In the 24 hours preceding Aug 21, 2026 - 01:56 AM EDT / 2026.08.21 0556 UTC

24 Hour Summary

Time
EDT (UTC)
Temperature
F (C)
Dew Point
F (C)
Pressure
Inches (hPa)
Wind
MPH
Weather
Latest 7 AM (11) Aug 21 75.9 (24.4) 73.9 (23.3) 30.05 (1017) Calm
6 AM (10) Aug 21 78.1 (25.6) 75.0 (23.9) 30.04 (1017) S 7
5 AM (9) Aug 21 78.1 (25.6) 75.0 (23.9) 30.04 (1017) S 6
4 AM (8) Aug 21 79.0 (26.1) 73.9 (23.3) 30.05 (1017) S 6
3 AM (7) Aug 21 81.0 (27.2) 73.9 (23.3) 30.05 (1017) S 7
2 AM (6) Aug 21 82.0 (27.8) 73.9 (23.3) 30.04 (1017) S 7
1 AM (5) Aug 21 84.0 (28.9) 73.0 (22.8) 30.03 (1016) S 12
Midnight (4) Aug 21 87.1 (30.6) 71.1 (21.7) 30.02 (1016) S 13
11 PM (3) Aug 20 89.1 (31.7) 71.1 (21.7) 29.99 (1015) SSE 16
10 PM (2) Aug 20 93.0 (33.9) 71.1 (21.7) 29.95 (1014) SSE 17
9 PM (1) Aug 20 97.0 (36.1) 66.9 (19.4) 29.94 (1013) SSE 9
8 PM (0) Aug 20 99.0 (37.2) 66.0 (18.9) 29.93 (1013) SE 10
7 PM (23) Aug 20 100.9 (38.3) 66.0 (18.9) 29.94 (1013) SSE 9
6 PM (22) Aug 20 102.9 (39.4) 66.9 (19.4) 29.94 (1013) WSW 12
5 PM (21) Aug 20 99.0 (37.2) 68.0 (20.0) 29.96 (1014) S 6
4 PM (20) Aug 20 100.9 (38.3) 70.0 (21.1) 29.98 (1015) SE 12
3 PM (19) Aug 20 99.0 (37.2) 71.1 (21.7) 30.01 (1016) Variable 6
2 PM (18) Aug 20 97.0 (36.1) 72.0 (22.2) 30.03 (1016) SSE 9
1 PM (17) Aug 20 93.9 (34.4) 73.9 (23.3) 30.05 (1017) S 13
Noon (16) Aug 20 90.0 (32.2) 75.0 (23.9) 30.05 (1017) SW 9
11 AM (15) Aug 20 84.9 (29.4) 75.9 (24.4) 30.04 (1017) SSW 12 mist
10 AM (14) Aug 20 82 (28) 75 (24) 30.04 (1017) SSW 9 mist
9 AM (13) Aug 20 77.0 (25.0) 75.0 (23.9) 30.03 (1016) SSE 5
Oldest 8 AM (12) Aug 20 73.0 (22.8) 71.1 (21.7) 30.01 (1016) Calm
Time
EDT (UTC)
Temperature
F(C)
Dew Point
F(C)
Pressure
Inches(hPa)
Wind
(MPH)
Weather

The information presented here is taken from products produced by the U.S. National Weather Service and other national and international agencies




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