Weather Forecast and Conditions for San Marcos, Texas 78666 - The Weather Channel | Weather.com
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69° Mostly Cloudy Night
Mostly Cloudy
Day 88° • Night 66°
Feels Like69°
Sunrise

7:28 am

Sunset

7:46 pm

Temperature
High / Low
--/66°
Wind
12 mph
Humidity
Humidity
83%
Dew point
Dew Point
64°
Pressure
Pressure
30.02 in
UV index
UV Index
0 of 11
Visibility
Visibility
10 mi
Moon Phase - Day 7
Moon Phase
First Quarter

Hourly Weather-

Now

Cloudy Cloudy
68°
Rain drop 3%
S 10 mph
Subtract

Cloudy

  • Temperature feels like
    Feels Like68°
  • WindS 10 mph
  • Humidity
    Humidity88%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover80%
  • Rain drop
    Rain Amount0 in

2 am

Cloudy Cloudy
67°
Rain drop 5%
S 10 mph
Add

Cloudy

  • Temperature feels like
    Feels Like67°
  • WindS 10 mph
  • Humidity
    Humidity90%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0 in

3 am

Cloudy Cloudy
67°
Rain drop 15%
S 10 mph
Add

Cloudy

  • Temperature feels like
    Feels Like67°
  • WindS 10 mph
  • Humidity
    Humidity92%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0 in

4 am

Cloudy Cloudy
67°
Rain drop 15%
S 9 mph
Add

Cloudy

  • Temperature feels like
    Feels Like67°
  • WindS 9 mph
  • Humidity
    Humidity88%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover94%
  • Rain drop
    Rain Amount0 in
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10 Day Weather-

Tonight

Mostly Cloudy Night Mostly Cloudy
--/66°
Rain drop 22%
Subtract

Night

66°
Mostly Cloudy Night
Rain drop
22%
S 11 mph

Partly cloudy this evening, then becoming cloudy after midnight. Low 66F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity88%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:27 pm
  • Moonset
    Moonset2:24 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Partly Cloudy Day AM Clouds/PM Sun
90°/65°
Rain drop 22%
Add

Day

90°
Partly Cloudy Day
Rain drop
22%
S 16 mph

Cloudy early, becoming mostly sunny in the afternoon. Near record high temperatures. High near 90F. Winds S at 10 to 20 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index9 of 11
  • Sunrise
    Sunrise7:28 am
  • Sunset
    Sunset7:46 pm

Night

65°
Partly Cloudy Night
Rain drop
24%
S 17 mph

Clear during the evening followed by cloudy skies overnight. Low around 65F. Winds S at 10 to 20 mph.

  • Humidity
    Humidity72%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:33 pm
  • Moonset
    Moonset3:21 am
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Partly Cloudy Day AM Clouds/PM Sun
86°/54°
Rain drop 19%
Add

Day

86°
Partly Cloudy Day
Rain drop
19%
SSE 14 mph

Cloudy skies early, then partly cloudy in the afternoon. High 86F. Winds SSE at 10 to 20 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index9 of 11
  • Sunrise
    Sunrise7:26 am
  • Sunset
    Sunset7:47 pm

Night

54°
Partly Cloudy Night
Rain drop
17%
NNE 16 mph

Partly cloudy skies. Low 54F. Winds NNE at 10 to 20 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:41 pm
  • Moonset
    Moonset4:11 am
  • Moon Phase - Day 9 Waxing Gibbous

Sat 28

Partly Cloudy Day Partly Cloudy
71°/52°
Rain drop 11%
Add

Day

71°
Partly Cloudy Day
Rain drop
11%
NNE 14 mph

Partly to mostly cloudy. High 71F. Winds NNE at 10 to 20 mph.

  • Humidity
    Humidity57%
  • UV index
    UV Index9 of 11
  • Sunrise
    Sunrise7:25 am
  • Sunset
    Sunset7:48 pm

Night

52°
Partly Cloudy Night
Rain drop
8%
ESE 9 mph

Partly cloudy. Low 52F. Winds ESE at 5 to 10 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise3:47 pm
  • Moonset
    Moonset4:53 am
  • Moon Phase - Day 10 Waxing Gibbous
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