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Hazardous Weather Conditions

No active alerts for SAN MARCOS, TEXAS

Current Conditions: SAN MARCOS, TEXAS

Cloudy


66.2 F
Last Updated on Feb 28 2026, 11:15 PM CST
Humidity: 83%
Wind Speed: 13.8 mph
Barometer: 30.00 in
Dewpoint: 60.8 F
Visibility: 9.00 mi
Precip: --
Heat Index: NA
Wind Chill: NA
Current conditions at:

NEW BRAUNFELS (KBAZ)

Lat: 29.72 Lon: -98.05

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5 Day Forecast for SAN MARCOS, TEXAS (78666)

Saturday
Forecast Missing
High 86 °F
Saturday
Night
Forecast Missing
Low 60 °F
Sunday
Forecast Missing
High 84 °F
Sunday
Night
Forecast Missing
Low 60 °F
Monday
Forecast Missing
High 82 °F
Monday
Night
Forecast Missing
Low 59 °F
Tuesday
Forecast Missing
High 84 °F
Tuesday
Night
Forecast Missing
Low 64 °F
Wednesday
Forecast Missing
High 84 °F



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Observation History for SAN MARCOS, TEXAS


Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
11:15 PM CST 13.8 9.00 Cloudy -- 66.2 60.8 83% NA NA 30.00 1015.9
11:10 PM CST 9.00 Cloudy -- 66.2 60.8 83% NA NA 30.00 1015.9
11:05 PM CST 9.00 Cloudy -- 66.2 60.8 83% NA NA 30.00 1015.9
10:50 PM CST 10.00 Mostly Cloudy -- 66.2 60.8 83% NA NA 30.00 1015.9
10:45 PM CST 10.00 Mostly Cloudy -- 66.2 60.8 83% NA NA 29.99 1015.6
10:35 PM CST 11.5 10.00 Mostly Clear -- 66.2 60.8 83% NA NA 29.99 1015.6
10:30 PM CST 11.5 10.00 Clear -- 66.2 60.8 83% NA NA 29.99 1015.6
10:20 PM CST 10.00 Clear -- 66.2 60.8 83% NA NA 29.99 1015.6
10:10 PM CST 10.00 Clear -- 68.0 60.8 78% NA NA 29.98 1015.2
09:50 PM CST 10.00 Clear -- 69.8 59.0 69% NA NA 29.97 1014.9
09:40 PM CST 12.7 10.00 Clear -- 69.8 57.2 64% NA NA 29.97 1014.9
09:35 PM CST 15.0 10.00 Clear -- 69.8 57.2 64% NA NA 29.97 1014.9
09:25 PM CST 13.8 10.00 Clear -- 69.8 55.4 60% NA NA 29.97 1014.9
09:20 PM CST 15.0 G 20.7 10.00 Clear -- 69.8 55.4 60% NA NA 29.97 1014.9
09:15 PM CST 12.7 10.00 Clear -- 71.6 53.6 53% NA 70.9 29.96 1014.6
09:10 PM CST 12.7 10.00 Clear -- 71.6 53.6 53% NA 70.9 29.96 1014.6
09:05 PM CST 13.8 10.00 Clear -- 71.6 53.6 53% NA 70.9 29.96 1014.6
08:45 PM CST 15.0 10.00 Clear -- 71.6 50.0 46% NA 70.7 29.95 1014.2
08:40 PM CST 13.8 10.00 Clear -- 73.4 50.0 44% NA 72.5 29.95 1014.2
08:35 PM CST 15.0 10.00 Clear -- 73.4 50.0 44% NA 72.5 29.95 1014.2
08:30 PM CST 10.00 Clear -- 73.4 50.0 44% NA 72.5 29.95 1014.2
08:20 PM CST SE 15.0 10.00 Clear -- 73.4 48.2 41% NA 72.3 29.94 1013.9
08:15 PM CST 10.00 Clear -- 73.4 48.2 41% NA 72.3 29.94 1013.9
08:10 PM CST 15.0 G 20.7 10.00 Clear -- 73.4 48.2 41% NA 72.3 29.94 1013.9

Regional Weather Observation

NEW BRAUNFELS (KBAZ)

Cloudy
66.2 F

SAN MARCOS (KHYI)

Cloudy
66.2 F

HORSESHOE BAY (KDZB)

Clear
67.3 F

AUSTIN (KAUS)

Clear
64.4 F

AUSTIN/MABRY (KATT)

Clear
68.0 F

LAGO VISTA (KRYW)

Clear
NULL F

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