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San Marcos, TX

88°F
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San Marcos

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88°
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San Marcos, TX Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Monthly

 Air Quality Health & Activities

June

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
31
89°
68°
1
92°
69°
2
92°
68°
3
88°
69°
4
87°
72°
5
86°
73°
6
92°
74°
7
91°
78°
8
A t-storm around in the p.m.
88°
76°
9
Humid with a few showers
92°
73°
10
Humid; a stray p.m. t-storm
92°
75°
11
A t-storm around in the p.m.
91°
75°
12
A t-storm around in the p.m.
93°
74°
13
Humid with a stray t-storm
95°
75°
14
Humid with a t-storm in spots
94°
75°
15
An afternoon t-storm or two
92°
73°
16
An a.m. shower; partly sunny
90°
72°
17
An afternoon t-storm or two
91°
74°
18
Humid with a t-storm around
93°
75°
19
Humid with a stray t-storm
95°
77°
20
Partial sunshine
94°
75°
21
Times of clouds and sun
93°
74°
22
Humid with some sun
91°
75°
23
Mostly sunny and humid
93°
75°
24
A t-shower in spots; humid
93°
74°
25
Humid with clouds and sun
92°
75°
26
Mostly sunny
94°
75°
27
Partly sunny and humid
95°
74°
28
Humid with clouds and sun
95°
75°
29
A thunderstorm in spots
93°
75°
30
Cloudy and humid
95°
76°
1
Times of clouds and sun
95°
75°
2
Partly sunny and very warm
96°
73°
3
Sunny and very warm
95°
75°
4
Mostly sunny and very warm
96°
75°

Temperature Graph

°F
100° 92° 84° 76° 68° Jun
Today 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

June Weather in San Marcos

San Marcos's June 2026 forecast shows daily high temperatures ranging from 88° to 96°, with overnight lows between 72° and 77°. The average high for June is 93° with an average low of 75°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in San Marcos. See also: July | August | September.

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