10-day forecast

Today Mostly cloudy 1% 48° 74° Today · UV 5 · Wind 4 mph · ☀ 7:37 AM – 6:58 PM
Tue 20 Clear 1% 57° 79° Tuesday, October 20 · UV 6 · Wind 7 mph · ☀ 7:38 AM – 6:57 PM
Wed 21 Mostly clear 0% 58° 82° Wednesday, October 21 · UV 6 · Wind 4 mph · ☀ 7:38 AM – 6:56 PM
Thu 22 Mostly clear 0% 60° 82° Thursday, October 22 · UV 6 · Wind 4 mph · ☀ 7:39 AM – 6:55 PM
Fri 23 Mostly clear 0% 59° 84° Friday, October 23 · UV 6 · Wind 7 mph · ☀ 7:40 AM – 6:54 PM
Sat 24 Partly cloudy 0% 62° 83° Saturday, October 24 · UV 4 · Wind 9 mph · ☀ 7:40 AM – 6:53 PM
Sun 25 Mostly cloudy 0% 63° 81° Sunday, October 25 · UV 4 · Wind 7 mph · ☀ 7:41 AM – 6:52 PM
Mon 26 Mostly cloudy 32% 63° 81° Monday, October 26 · UV 2 · Wind 7 mph · ☀ 7:42 AM – 6:51 PM
Tue 27 Showers 85% 63° 80° Tuesday, October 27 · UV 0 · Wind 7 mph · ☀ 7:43 AM – 6:50 PM
Wed 28 Drizzle 32% 65° 81° Wednesday, October 28 · UV 0 · Wind 7 mph · ☀ 7:43 AM – 6:50 PM

14-day outlook & extended hourly ★ Premium

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About ZIP code 78666

ZIP code 78666 is San Marcos, in Hays County, Texas. This forecast is for the centre of the ZIP area at 29.882°, -97.985°, 3 mi from central San Marcos. Right now it’s 48° and partly cloudy; today’s high is 74° with a 1% chance of rain.

San Marcos, TX forecast