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Northeast weather to feel more like Thanksgiving than Memorial Day. See the temp forecast. Chevron right

San Marco, FL

88°F
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San Marco

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

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

July

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
28
Partly sunny and humid
91°
76°
29
Mostly sunny and humid
93°
77°
30
Partly sunny and humid
93°
77°
1
A shower and thunderstorm
92°
76°
2
A shower and thunderstorm
88°
77°
3
Showers around in the morning
88°
77°
4
Humid with clouds and sun
89°
76°
5
Humid with clouds and sun
90°
76°
6
Partly sunny, a few showers
91°
76°
7
Humid with showers around
92°
76°
8
Humid with a few showers
91°
76°
9
A shower and t-storm; humid
90°
75°
10
Humid with a few showers
92°
76°
11
Mostly sunny
93°
75°
12
Partly sunny, showers around
92°
75°
13
Couple of thunderstorms
92°
76°
14
Couple of thunderstorms
91°
75°
15
A shower and t-storm; humid
90°
74°
16
A shower and thunderstorm
90°
74°
17
A shower and thunderstorm
91°
75°
18
Cloudy with thunderstorms
89°
74°
19
Cloudy with thunderstorms
90°
74°
20
A shower and thunderstorm
90°
75°
21
A shower and thunderstorm
91°
74°
22
A shower and thunderstorm
90°
75°
23
A shower and thunderstorm
90°
74°
24
A shower and thunderstorm
91°
75°
25
Partly sunny, a few showers
93°
75°
26
A couple of showers
93°
76°
27
Some sun with a few showers
92°
74°
28
A shower and thunderstorm
93°
75°
29
Partly sunny, showers around
92°
76°
30
Some sun with showers around
91°
75°
31
Partly sunny, showers around
93°
76°
1
Showers around in the p.m.
93°
75°

Temperature Graph

°F
100° 94° 88° 82° 76° Jul
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 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

July Weather in San Marco

San Marco's July 2026 forecast shows daily high temperatures ranging from 88° to 93°, with overnight lows between 74° and 77°. The average high for July is 91° 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 July weather will actually feel in San Marco. See also: August | September | October.

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World North America United States Florida San Marco

Weather Near San Marco:

  • Fruit Cove, FL
  • Jacksonville, FL
  • Lakeside, FL
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