Point Forecast: San Marcos Municipal Airport TX  29.88N 97.86W (Elev. 600 ft)	Last Update: 3:42 am CDT Mar 15, 2025

[hide menu]

Weather Elements Weather/Precipitation Fire Weather Temperature (°F) Dewpoint (°F) Wind Chill (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Snow Freezing Rain Sleet Fog Mixing Height  x100ftx100m Haines Index Lightning Activity Level Trans. Wind  ktmphkm/hm/s 20ft Wind  ktmphkm/hm/s

48-Hour Period Starting: 4am Sat, Mar 15 20255am Sat, Mar 15 20256am Sat, Mar 15 20257am Sat, Mar 15 20258am Sat, Mar 15 20259am Sat, Mar 15 202510am Sat, Mar 15 202511am Sat, Mar 15 202512pm Sat, Mar 15 20251pm Sat, Mar 15 20252pm Sat, Mar 15 20253pm Sat, Mar 15 20254pm Sat, Mar 15 20255pm Sat, Mar 15 20256pm Sat, Mar 15 20257pm Sat, Mar 15 20258pm Sat, Mar 15 20259pm Sat, Mar 15 202510pm Sat, Mar 15 202511pm Sat, Mar 15 202512am Sun, Mar 16 20251am Sun, Mar 16 20252am Sun, Mar 16 20253am Sun, Mar 16 20254am Sun, Mar 16 20255am Sun, Mar 16 20256am Sun, Mar 16 20257am Sun, Mar 16 20258am Sun, Mar 16 20259am Sun, Mar 16 202510am Sun, Mar 16 202511am Sun, Mar 16 202512pm Sun, Mar 16 20251pm Sun, Mar 16 20252pm Sun, Mar 16 20253pm Sun, Mar 16 20254pm Sun, Mar 16 20255pm Sun, Mar 16 20256pm Sun, Mar 16 20257pm Sun, Mar 16 20258pm Sun, Mar 16 20259pm Sun, Mar 16 202510pm Sun, Mar 16 202511pm Sun, Mar 16 202512am Mon, Mar 17 20251am Mon, Mar 17 20252am Mon, Mar 17 20253am Mon, Mar 17 20254am Mon, Mar 17 20255am Mon, Mar 17 20256am Mon, Mar 17 20257am Mon, Mar 17 20258am Mon, Mar 17 20259am Mon, Mar 17 202510am Mon, Mar 17 202511am Mon, Mar 17 202512pm Mon, Mar 17 20251pm Mon, Mar 17 20252pm Mon, Mar 17 20253pm Mon, Mar 17 20254pm Mon, Mar 17 20255pm Mon, Mar 17 20256pm Mon, Mar 17 20257pm Mon, Mar 17 20258pm Mon, Mar 17 20259pm Mon, Mar 17 202510pm Mon, Mar 17 202511pm Mon, Mar 17 202512am Tue, Mar 18 20251am Tue, Mar 18 20252am Tue, Mar 18 20253am Tue, Mar 18 20254am Tue, Mar 18 20255am Tue, Mar 18 20256am Tue, Mar 18 20257am Tue, Mar 18 20258am Tue, Mar 18 20259am Tue, Mar 18 202510am Tue, Mar 18 202511am Tue, Mar 18 202512pm Tue, Mar 18 20251pm Tue, Mar 18 20252pm Tue, Mar 18 20253pm Tue, Mar 18 20254pm Tue, Mar 18 20255pm Tue, Mar 18 20256pm Tue, Mar 18 20257pm Tue, Mar 18 20258pm Tue, Mar 18 20259pm Tue, Mar 18 202510pm Tue, Mar 18 202511pm Tue, Mar 18 202512am Wed, Mar 19 20251am Wed, Mar 19 20252am Wed, Mar 19 20253am Wed, Mar 19 20254am Wed, Mar 19 20255am Wed, Mar 19 20256am Wed, Mar 19 20257am Wed, Mar 19 20258am Wed, Mar 19 20259am Wed, Mar 19 202510am Wed, Mar 19 202511am Wed, Mar 19 202512pm Wed, Mar 19 20251pm Wed, Mar 19 20252pm Wed, Mar 19 20253pm Wed, Mar 19 2025

Date	03/15																				03/16
Hour (CDT)	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03
Temperature (°F)	66	63	61	58	56	61	67	71	74	75	77	78	78	79	77	76	71	65	63	61	58	56	54	52
Dewpoint (°F)	31	29	29	24	25	27	28	28	27	28	28	27	26	26	26	28	28	28	29	29	30	31	31	31
Wind Chill (°F)
Surface Wind (mph)	8	8	8	10	13	16	17	21	24	24	24	23	22	22	22	18	16	14	10	10	8	7	6	6
Wind Dir	NNW	NNW	NW	WNW	WNW	WNW	WNW	WNW	W	W	W	W	W	W	W	W	W	WNW	NW	NNW	NNW	NNW	NW	NW
Gust					18	24	26	31	37	37	37	34	33	33	33	31	26	23	20
Sky Cover (%)	54	40	32	16	9	3	2	3	3	3	3	4	5	4	2	17	24	4	6	3	3	4	3	4
Precipitation Potential (%)	19	19	19	2	2	2	0	0	0	0	0	0	0	0	0	1	1	1	0	0	0	1	1	1
Relative Humidity (%)	27	28	30	27	30	27	23	20	17	18	16	15	15	14	15	17	20	25	28	30	34	38	41	44
Rain	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																					03/17
Hour (CDT)	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03
Temperature (°F)	50	48	48	46	47	52	61	66	71	74	76	78	78	78	77	75	70	63	58	55	54	53	51	49
Dewpoint (°F)	32	32	31	31	30	31	33	34	33	32	31	30	29	29	30	30	30	30	30	30	30	31	32	34
Wind Chill (°F)	48	46	46	44	45																			49
Surface Wind (mph)	5	5	5	5	5	5	5	5	6	6	7	8	8	7	6	5	5	3	3	3	3	3	3	2
Wind Dir	NW	NW	NW	NW	W	WNW	NNW	NNW	NW	WNW	WNW	WNW	W	WNW	NNW	N	NNE	ENE	E	E	SE	SSE	SSE	S
Gust
Sky Cover (%)	3	4	3	4	5	0	3	3	4	4	4	3	3	4	5	6	5	5	4	5	5	6	5	5
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	50	54	51	56	51	44	35	30	25	21	19	17	17	16	18	19	22	29	34	38	40	43	48	56
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph NWS Austin/San Antonio Current Observations Satellite Imagery Interactive Grids Point Forecast Matrices Fire Weather Drought Rivers & Lakes Climate Data NOAA Weather Radio Contact Local Office