Thursday, December 18, 2025 at 4:10 PM

Sign in

Weather forecast San Marcos, Texas, United States

°C, km/h °F, mph

Thursday
12/18/25

62°F moderate rain

morning: 50°F evening: 58°F night: 54°F

rain: 16.55 mm

pressure: 1015 hPa

wind: 8 mph

humidity: 76%

cloudy: 87%

Friday
12/19/25

58°F moderate rain

morning: 53°F evening: 50°F night: 47°F

rain: 9.71 mm

pressure: 1018 hPa

wind: 9 mph

humidity: 79%

cloudy: 86%

Saturday
12/20/25

63°F light rain

morning: 45°F evening: 51°F night: 46°F

rain: 2.52 mm

pressure: 1016 hPa

wind: 10 mph

humidity: 57%

cloudy: 9%

Sunday
12/21/25

64°F light rain

morning: 45°F evening: 51°F night: 48°F

rain: 2.12 mm

pressure: 1016 hPa

wind: 9 mph

humidity: 55%

cloudy: 0%

Monday
12/22/25

63°F light rain

morning: 46°F evening: 50°F night: 46°F

rain: 1.01 mm

pressure: 1017 hPa

wind: 10 mph

humidity: 52%

cloudy: 1%

Tuesday
12/23/25

63°F light rain

morning: 46°F evening: 50°F night: 48°F

rain: 1.92 mm

pressure: 1016 hPa

wind: 10 mph

humidity: 55%

cloudy: 0%

Wednesday
12/24/25

63°F light rain

morning: 47°F evening: 50°F night: 47°F

rain: 2.79 mm

pressure: 1017 hPa

wind: 10 mph

humidity: 53%

cloudy: 7%

Thursday
12/25/25

63°F light rain

morning: 46°F evening: 49°F night: 47°F

rain: 2.73 mm

pressure: 1017 hPa

wind: 10 mph

humidity: 52%

cloudy: 1%

Friday
12/26/25

62°F moderate rain

morning: 47°F evening: 49°F night: 47°F

rain: 6.03 mm

pressure: 1017 hPa

wind: 9 mph

humidity: 61%

cloudy: 44%

Saturday
12/27/25

62°F light rain

morning: 44°F evening: 49°F night: 46°F

rain: 4.56 mm

pressure: 1016 hPa

wind: 9 mph

humidity: 57%

cloudy: 5%

Sunday
12/28/25

62°F light rain

morning: 43°F evening: 48°F night: 44°F

rain: 0.69 mm

pressure: 1015 hPa

wind: 9 mph

humidity: 49%

cloudy: 4%

Monday
12/29/25

61°F light rain

morning: 43°F evening: 49°F night: 44°F

rain: 1.77 mm

pressure: 1015 hPa

wind: 8 mph

humidity: 54%

cloudy: 1%

Tuesday
12/30/25

62°F light rain

morning: 44°F evening: 51°F night: 49°F

rain: 2.58 mm

pressure: 1015 hPa

wind: 8 mph

humidity: 52%

cloudy: 0%

Wednesday
12/31/25

63°F light rain

morning: 45°F evening: 51°F night: 46°F

rain: 2.64 mm

pressure: 1015 hPa

wind: 9 mph

humidity: 51%

cloudy: 1%

Thursday
1/1/26

63°F light rain

morning: 44°F evening: 53°F night: 48°F

rain: 2.31 mm

pressure: 1016 hPa

wind: 8 mph

humidity: 53%

cloudy: 28%

Friday
1/2/26

64°F light rain

morning: 46°F evening: 52°F night: 47°F

rain: 4.89 mm

pressure: 1016 hPa

wind: 8 mph

humidity: 58%

cloudy: 3%

Weather forecast from OpenWeather