Weather Forecast and Conditions for San Marcos, Texas 78666 - The Weather Channel | Weather.com
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85° Sunny
Sunny/Wind
Day 93° • Night 58°
Feels Like85°
Sunrise

7:32 am

Sunset

7:44 pm

Temperature
High / Low
93°/58°
Wind
21 mph
Humidity
Humidity
31%
Dew point
Dew Point
50°
Pressure
Pressure
29.91 in
UV index
UV Index
8 of 11
Visibility
Visibility
10 mi
Moon Phase - Day 4
Moon Phase
Waxing Crescent

Hourly Weather-

Now

Windy Sunny/Wind
88°
Rain drop 0%
SSW 21 mph
Subtract

Sunny/Wind

  • Temperature feels like
    Feels Like88°
  • WindSSW 21 mph
  • Humidity
    Humidity26%
  • UV index
    UV Index8 of 11
  • Cloud
    Cloud Cover0%
  • Rain drop
    Rain Amount0 in

3 pm

Sunny Sunny
90°
Rain drop 0%
SSW 19 mph
Add

Sunny

  • Temperature feels like
    Feels Like90°
  • WindSSW 19 mph
  • Humidity
    Humidity23%
  • UV index
    UV Index7 of 11
  • Cloud
    Cloud Cover0%
  • Rain drop
    Rain Amount0 in

4 pm

Sunny Sunny
92°
Rain drop 0%
S 18 mph
Add

Sunny

  • Temperature feels like
    Feels Like92°
  • WindS 18 mph
  • Humidity
    Humidity21%
  • UV index
    UV Index5 of 11
  • Cloud
    Cloud Cover0%
  • Rain drop
    Rain Amount0 in

5 pm

Sunny Sunny
91°
Rain drop 0%
S 16 mph
Add

Sunny

  • Temperature feels like
    Feels Like91°
  • WindS 16 mph
  • Humidity
    Humidity22%
  • UV index
    UV Index3 of 11
  • Cloud
    Cloud Cover0%
  • Rain drop
    Rain Amount0 in
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10 Day Weather-

Today

Windy Sunny/Wind
93°/58°
Rain drop 0%
Subtract

Day

93°
Windy
S 20 mph

Sunny with gusty winds. Near record high temperatures. High 93F. Winds S at 20 to 30 mph.

  • Humidity
    Humidity24%
  • UV index
    UV Index8 of 11
  • Sunrise
    Sunrise7:32 am
  • Sunset
    Sunset7:44 pm

Night

58°
Mostly Clear Night
Rain drop
21%
S 14 mph

Clear to partly cloudy. Low 58F. Winds S at 10 to 20 mph.

  • Humidity
    Humidity69%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:39 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Partly Cloudy Day Partly Cloudy
88°/60°
Rain drop 16%
Add

Day

88°
Partly Cloudy Day
Rain drop
16%
S 8 mph

Partly cloudy skies. Very warm. High 88F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index8 of 11
  • Sunrise
    Sunrise7:31 am
  • Sunset
    Sunset7:44 pm

Night

60°
Partly Cloudy Night
Rain drop
22%
SSE 9 mph

A few clouds from time to time. Low around 60F. Winds SSE at 5 to 10 mph.

  • Humidity
    Humidity66%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:28 am
  • Moonset
    Moonset12:08 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Partly Cloudy Day AM Clouds/PM Sun
88°/64°
Rain drop 22%
Add

Day

88°
Partly Cloudy Day
Rain drop
22%
S 12 mph

Mostly cloudy early, then afternoon sunshine. High 88F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index9 of 11
  • Sunrise
    Sunrise7:30 am
  • Sunset
    Sunset7:45 pm

Night

64°
Partly Cloudy Night
Rain drop
22%
SSE 13 mph

Clear during the evening followed by cloudy skies overnight. Low 64F. Winds SSE at 10 to 20 mph.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:23 am
  • Moonset
    Moonset1:18 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Partly Cloudy Day AM Clouds/PM Sun
90°/64°
Rain drop 23%
Add

Day

90°
Partly Cloudy Day
Rain drop
23%
S 14 mph

Cloudy early, becoming mostly sunny in the afternoon. High around 90F. Winds S at 10 to 20 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index9 of 11
  • Sunrise
    Sunrise7:29 am
  • Sunset
    Sunset7:46 pm

Night

64°
Mostly Clear Night
Rain drop
20%
S 15 mph

A few clouds overnight. Low 64F. Winds S at 10 to 20 mph.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:26 pm
  • Moonset
    Moonset2:24 am
  • Moon Phase - Day 7 First Quarter
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