Weather Forecast and Conditions for San Marcos, Texas 78666 - The Weather Channel | Weather.com
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66° Sunny
Sunny
Day 67° • Night 41°
Feels Like66°
Sunrise

7:39 am

Sunset

7:41 pm

Temperature
High / Low
67°/41°
Wind
14 mph
Humidity
Humidity
11%
Dew point
Dew Point
10°
Pressure
Pressure
30.23 in
UV index
UV Index
6 of 11
Visibility
Visibility
10 mi
Moon Phase - Day 28
Moon Phase
Waning Crescent

Hourly Weather-

Now

Sunny Sunny
66°
Rain drop 0%
S 14 mph
Subtract

Sunny

  • Temperature feels like
    Feels Like66°
  • WindS 14 mph
  • Humidity
    Humidity11%
  • UV index
    UV Index5 of 11
  • Cloud
    Cloud Cover4%
  • Rain drop
    Rain Amount0 in

5 pm

Sunny Sunny
67°
Rain drop 0%
S 14 mph
Add

Sunny

  • Temperature feels like
    Feels Like67°
  • WindS 14 mph
  • Humidity
    Humidity11%
  • UV index
    UV Index3 of 11
  • Cloud
    Cloud Cover11%
  • Rain drop
    Rain Amount0 in

6 pm

Sunny Sunny
66°
Rain drop 0%
S 14 mph
Add

Sunny

  • Temperature feels like
    Feels Like66°
  • WindS 14 mph
  • Humidity
    Humidity11%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover0%
  • Rain drop
    Rain Amount0 in

7 pm

Sunny Sunny
64°
Rain drop 0%
S 13 mph
Add

Sunny

  • Temperature feels like
    Feels Like63°
  • WindS 13 mph
  • Humidity
    Humidity14%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover4%
  • Rain drop
    Rain Amount0 in
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10 Day Weather-

Today

Sunny Sunny
67°/41°
Rain drop 0%
Subtract

Day

67°
Sunny
S 13 mph

Sunny. High 67F. Winds S at 10 to 20 mph.

  • Humidity
    Humidity11%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise7:39 am
  • Sunset
    Sunset7:41 pm

Night

41°
Partly Cloudy Night
Rain drop
5%
S 13 mph

Partly cloudy skies. Low 41F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity49%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:49 am
  • Moonset
    Moonset6:34 pm
  • Moon Phase - Day 28 Waning Crescent

Wed 18

Sunny Sunny
80°/50°
Rain drop 7%
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Day

80°
Sunny
Rain drop
7%
SSW 12 mph

Abundant sunshine. High near 80F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index8 of 11
  • Sunrise
    Sunrise7:37 am
  • Sunset
    Sunset7:42 pm

Night

50°
Clear Night
Rain drop
8%
S 10 mph

Clear skies. Low around 50F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity68%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:19 am
  • Moonset
    Moonset7:36 pm
  • Moon Phase - Day 29 New Moon

Thu 19

Sunny Sunny
86°/54°
Rain drop 8%
Add

Day

86°
Sunny
Rain drop
8%
SW 11 mph

A mainly sunny sky. High 86F. Winds SW at 10 to 15 mph.

  • Humidity
    Humidity54%
  • UV index
    UV Index8 of 11
  • Sunrise
    Sunrise7:36 am
  • Sunset
    Sunset7:42 pm

Night

54°
Clear Night
Rain drop
7%
SSW 10 mph

Clear skies. Low 54F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity62%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:50 am
  • Moonset
    Moonset8:41 pm
  • Moon Phase - Day 1 Waxing Crescent

Fri 20

Sunny Sunny
90°/57°
Rain drop 7%
Add

Day

90°
Sunny
Rain drop
7%
SW 11 mph

Mainly sunny. Near record high temperatures. High around 90F. Winds SW at 10 to 15 mph.

  • Humidity
    Humidity51%
  • UV index
    UV Index8 of 11
  • Sunrise
    Sunrise7:35 am
  • Sunset
    Sunset7:43 pm

Night

57°
Clear Night
Rain drop
5%
SSW 11 mph

Clear skies. Low 57F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:23 am
  • Moonset
    Moonset9:48 pm
  • Moon Phase - Day 2 Waxing Crescent
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