San Marcos Weather Conditions
Current Temperature Level
San Marcos Weather Conditions
Current Temperature Level
Feels Like 33°C
Chances of Rain2%
31°2%11 PM29°4%12 AM28°6%1 AM27°8%2 AM26°11%3 AM25°14%4 AM
25°17%5 AM24°18%6 AM24°17%7 AM24°16%8 AM
25°12%9 AM28°5%10 AM31°2%11 AM33°1%12 PM35°0%1 PM37°1%2 PM38°0%3 PM39°0%4 PM40°1%5 PM40°1%6 PM40°1%7 PM39°1%8 PM35°1%9 PM33°2%Skies are likely to remain clear overnight.
Last Updated: 2026-08-16 22:00 (Local Time)
165°SSE
Direction
27.4km/h
Wind Speed
Gust Speed
10.9m/s
Precipitation
Precipitation
0mm
Pressure
1016mb
UV Index
0Low
Today
31
°C
56%Monday
31
°C53%Tuesday
31
°C51%Wednesday
31
°C51%Thursday
31
°C57%Friday
31
°C59%Saturday
28
°C73%Sunday
27
°C71%Monday
30
°C61%Tuesday
29
°C62%Sunny
Clear Sky with temperature at 31 °C and humidity will be at 56% with 27.4 km/h winds.40°C / 22°C
Humi.56 %
Prec.0 mm
Sunrise
07:00 AM13hrs 12min
Sunset
08:12 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
26 °C
72 %
0
21.6 kmph / S
Clear
Feels 28 °C
Cover 0 %
Visibility 10 km
1 AM
Clear
25 °C
81 %
0
17.3 kmph / S
ClearFeels 26 °C
Cover 0 %
Visibility 10 km
2 AM
Clear
24 °C
88 %
0
11.9 kmph / S
ClearFeels 26 °C
Cover 7 %
Visibility 10 km
3 AM
Clear
23 °C
93 %
0
9 kmph / SSW
ClearFeels 26 °C
Cover 14 %
Visibility 10 km
4 AM
Mist
22 °C
95 %
0
9.7 kmph / SSW
MistFeels 25 °C
Cover 20 %
Visibility 2 km
5 AM
Mist
22 °C
96 %
0
9.4 kmph / SSW
MistFeels 25 °C
Cover 27 %
Visibility 2 km
6 AM
Mist
22 °C
96 %
0
7.9 kmph / SSW
MistFeels 25 °C
Cover 30 %
Visibility 2 km
7 AM
Mist
22 °C
96 %
0
8.6 kmph / SSW
MistFeels 24 °C
Cover 36 %
Visibility 2 km
8 AM
Partly Cloudy
24 °C
89 %
0.3
10.1 kmph / SW
Partly CloudyFeels 26 °C
Cover 39 %
Visibility 10 km
9 AM
Sunny
27 °C
76 %
1.3
12.2 kmph / SW
SunnyFeels 29 °C
Cover 20 %
Visibility 10 km
10 AM
Sunny
30 °C
60 %
3.6
13 kmph / SSW
SunnyFeels 32 °C
Cover 0 %
Visibility 10 km
11 AM
Sunny
33 °C
46 %
6.4
14 kmph / SSW
SunnyFeels 34 °C
Cover 0 %
Visibility 10 km
12 PM
Sunny
35 °C
34 %
9
15.1 kmph / S
SunnyFeels 34 °C
Cover 0 %
Visibility 10 km
1 PM
Sunny
37 °C
27 %
10.5
14.8 kmph / S
SunnyFeels 36 °C
Cover 2 %
Visibility 10 km
2 PM
Sunny
38 °C
23 %
10.6
14.8 kmph / S
SunnyFeels 37 °C
Cover 4 %
Visibility 10 km
3 PM
Sunny
39 °C
20 %
9.2
14.8 kmph / S
SunnyFeels 37 °C
Cover 3 %
Visibility 10 km
4 PM
Sunny
40 °C
19 %
6.6
14.4 kmph / S
SunnyFeels 38 °C
Cover 2 %
Visibility 10 km
5 PM
Sunny
40 °C
18 %
3.8
13.3 kmph / S
SunnyFeels 38 °C
Cover 9 %
Visibility 10 km
6 PM
Sunny
40 °C
18 %
1.6
11.9 kmph / SSE
SunnyFeels 38 °C
Cover 14 %
Visibility 10 km
7 PM
Sunny
39 °C
19 %
0.4
12.2 kmph / SSE
SunnyFeels 37 °C
Cover 16 %
Visibility 10 km
8 PM
Sunny
36 °C
24 %
0
12.2 kmph / SSE
SunnyFeels 34 °C
Cover 19 %
Visibility 10 km
9 PM
Clear
33 °C
37 %
0
23.8 kmph / SSE
ClearFeels 30 °C
Cover 10 %
Visibility 10 km
10 PM
Clear
31 °C
54 %
0
27.4 kmph / SSE
ClearFeels 33 °C
Cover 4 %
Visibility 10 km
11 PM
Clear
29 °C
65 %
0
22.3 kmph / SSE
ClearFeels 32 °C
Cover 4 %
Visibility 10 km
39°25°40°24°40°23°40°26°39°25°40°26°39°26°39°23°37°24°38°25°40°26°40°26°41°26°39°26°40°26°40°22°40°24°40°24°40°23°40°22°41°24°36°23°32°23°36°24°35°24°34°24°35°24°35°24°35°24°35°24°35°24°AugustWeather Overview
No. of days:
Sunny
21
Cloudy
1
Rainy
8
Snowy
0
The monthly weather averages in San Marcos consist of 21 sunny days, 1 cloudy days, 8 rainy days, and 0 snowy days.
San Marcos's Locations Weather Conditions
United States's Hottest Cities - August 2026
1.
Scottsdale, Arizona
39 °C
Clear
19%
0
10.4 kmph / NW
2.
Calexico, California
39 °C
Clear
19%
0
13.3 kmph / WNW
3.
Tolleson, Arizona
39 °C
Clear
20%
0
7.6 kmph / WNW
4.
Blythe, California
39 °C
Clear
18%
0
17.3 kmph / WSW
5.
Guadalupe, Arizona
39 °C
Clear
20%
0
7.6 kmph / WNW
6.
Phoenix, Arizona
39 °C
Clear
20%
0
6.5 kmph / WNW
7.
Tempe, Arizona
38 °C
Clear
19%
0
11.2 kmph / NW
8.
El Centro, California
38 °C
Clear
20%
0
14 kmph / W
9.
Westmorland, California
38 °C
Clear
20%
0
7.6 kmph / WNW
10.
Brawley, California
38 °C
Clear
20%
0
7.6 kmph / WNW
Last Updated: 17 Aug 2026, 03:37 AM
City Weather RankingsFAQs About San Marcos Weather Conditions
1. What is the current temperature in San Marcos today - 16 August 2026?
1. What is the current temperature in San Marcos today - 16 August 2026?
The current temperature in San Marcos is 31°C, with a feels-like temperature of 33°C. Today's forecast shows a high of 40°C and a low of 22°C, giving a 18 degree swing through the day as of 10:00 PM 16 August 2026.
2. What are the current weather parameters in San Marcos today?
2. What are the current weather parameters in San Marcos today?
Here is a complete overview of San Marcos's current weather conditions as of 10:00 PM 16 August 2026: Condition : Clear Temperature : 31°C Hot (Feels like 33°C) Humidity : 54% Wind Speed : 27.4 km/h from SSE (165 degrees), Gust 11 m/s UV Index : 0 (Low Air Pressure : 1016 mb Cloud Cover : 4% Visibility : 10 km Precipitation : 0 mm (3% chance of rain)
3. What is the 10-day weather forecast for San Marcos from 10:00 PM 16 August 2026?
3. What is the 10-day weather forecast for San Marcos from 10:00 PM 16 August 2026?
From 10:00 PM 16 August 2026, San Marcos's 10-day forecast shows this trend: Today (Aug. 16) : Temp. 31°C, Hum. 56% and Sunny condition. Monday (Aug. 17) : Temp. 31°C, Hum. 53% and Sunny condition. Tuesday (Aug. 18) : Temp. 31°C, Hum. 51% and Sunny condition. Wednesday (Aug. 19) : Temp. 31°C, Hum. 51% and Sunny condition. Thursday (Aug. 20) : Temp. 31°C, Hum. 57% and Sunny condition. Friday (Aug. 21) : Temp. 31°C, Hum. 59% and Partly Cloudy condition. Saturday (Aug. 22) : Temp. 28°C, Hum. 73% and Thundery outbreaks in nearby condition. Sunday (Aug. 23) : Temp. 27°C, Hum. 71% and Sunny condition. Monday (Aug. 24) : Temp. 30°C, Hum. 61% and Rain Showers condition. Tuesday (Aug. 25) : Temp. 29°C, Hum. 62% and Rain Showers condition.
4. Will it rain in San Marcos today?
4. Will it rain in San Marcos today?
As of 10:00 PM 16 August 2026, there is a 2% chance of rainfall in San Marcos later today around 2026-08-16 22:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.
5. What is the monthly weather forecast for San Marcos in August 2026?
5. What is the monthly weather forecast for San Marcos in August 2026?
August 2026 in San Marcos is forecast to have 21 sunny days, 8 rainy days, 1 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 22°C to highs of 41°C.
6. How does the weather in San Marcos affect air quality?
6. How does the weather in San Marcos affect air quality?
Weather directly impacts air quality in San Marcos. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.
