Weather forecast for 10 days
San Marcos, El Salvador

Weather forecast for the weekend

Saturday, 24. May

PM Thunderstorms
05:27

18:19
CST
PM Thunderstorms
30°C / 21°C
  • Wind: 10km/h ESE
  • Humidity: 68%
  • Precip. probability: 56%
  • Precipitation: 6mm
  • UV index: 11
On Saturday, 24th of May, rainy weather and thunderstorms are expected in the afternoon.
With a high probability, light precipitation is anticipated. Temperature is forecasted to swing from a high of a humid 30°C to a low of an agreeable 21°C.
The maximum temperature on Saturday is forecasted to match the regular May high of 31.8°C.
Sunrise will be at 05:27 and sunset at 18:19; the daylight will last for 12h and 52min.

Sunday, 25. May

PM Thunderstorms
05:27

18:20
CST
PM Thunderstorms
30°C / 21°C
  • Wind: 10km/h SE
  • Humidity: 65%
  • Precip. probability: 64%
  • Precipitation: 7mm
  • UV index: 11
On Sunday, in San Marcos, stormy skies and lightning strikes are expected later today.
The likelihood of precipitation is high. However, the rainfall will be light. The highest predicted temperature is a humid 30°C, while the lowest temperature will be an agreeable 21°C.
The expected maximum is anticipated to be in line with the regular May temperature of 31.8°C.
Sunrise will be at 05:27 and sunset at 18:20; the daylight will last for 12h and 53min.

Frequently asked questions

What is the weather forecast for San Marcos for Saturday?
On Saturday, rainy weather and thunderstorms are expected in the afternoon.
Will it rain on Saturday?
Light precipitation of 6mm is predicted on Saturday. The chance of rainfall is 56%.
What will be the maximum temperature on Saturday?
On Saturday, the maximum temperature will be 30°C, while the minimum temperature will be 21°C.
What is the weather forecast for San Marcos for Sunday?
On Sunday, in San Marcos, thunderstorms are expected in the afternoon.
Will it rain on Sunday?
Light precipitation of 7mm is predicted on Sunday. The possibility of rainfall is 64%.
What will be the highest temperature on Sunday?
On Sunday, the maximum temperature will be 30°C, while the minimum temperature will be 21°C.
What is the weather forecast for San Marcos for the next ten days?
In San Marcos, a combination of stormy and cloud-filled weather is predicted for the next ten days.
Will it rain in the next ten days?
Rainfall is predicted for Thursday through next Wednesday in San Marcos. With light precipitation of 10mm, Friday will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will vary between 28°C and 30°C, while the minimum temperature will be between 21°C and 22°C.
Combining with the humidity, the maximum feel-like temperature will vary between 32°C and 35°C.
What will be the hottest and the coldest days in San Marcos?
The hottest days will be Thursday through next Wednesday, with a maximum of 30°C. The coldest day will be tomorrow, with a maximum of 28°C.

Long-term weather forecast

Mon19.May
  • min.
  • 21°C
Mostly Clear
Mostly Clear
  • Wind: 4km/h NE
  • Humidity: 94%
  • UV index: 0
  • Precip. probability: 20%
  • Precipitation: 0mm
  • 05:28 18:18 CST
Tue20.May
  • 28°C
  • 21°C
Partly Cloudy
Partly Cloudy
  • Wind: 14km/h SSE
  • Humidity: 76%
  • UV index: 10
  • Precip. probability: 24%
  • Precipitation: 0mm
  • 05:27 18:18 CST
Wed21.May
  • 29°C
  • 21°C
Partly Cloudy
Partly Cloudy
  • Wind: 13km/h SSE
  • Humidity: 69%
  • UV index: 11
  • Precip. probability: 20%
  • Precipitation: 0mm
  • 05:27 18:18 CST
Thu22.May
  • 30°C
  • 22°C
Partly Cloudy
Partly Cloudy
  • Wind: 12km/h SSE
  • Humidity: 68%
  • UV index: 11
  • Precip. probability: 24%
  • Precipitation: 4mm
  • 05:27 18:19 CST
Fri23.May
  • 30°C
  • 21°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 10km/h SSE
  • Humidity: 69%
  • UV index: 11
  • Precip. probability: 71%
  • Precipitation: 10mm
  • 05:27 18:19 CST
Sat24.May
  • 30°C
  • 21°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 10km/h ESE
  • Humidity: 68%
  • UV index: 11
  • Precip. probability: 56%
  • Precipitation: 6mm
  • 05:27 18:19 CST
Sun25.May
  • 30°C
  • 21°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 10km/h SE
  • Humidity: 65%
  • UV index: 11
  • Precip. probability: 64%
  • Precipitation: 7mm
  • 05:27 18:20 CST
Mon26.May
  • 30°C
  • 21°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 11km/h SE
  • Humidity: 66%
  • UV index: 10
  • Precip. probability: 49%
  • Precipitation: 5mm
  • 05:27 18:20 CST
Tue27.May
  • 30°C
  • 21°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 12km/h SE
  • Humidity: 65%
  • UV index: 11
  • Precip. probability: 60%
  • Precipitation: 7mm
  • 05:27 18:20 CST
Wed28.May
  • 30°C
  • 21°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 11km/h SE
  • Humidity: 66%
  • UV index: 11
  • Precip. probability: 60%
  • Precipitation: 8mm
  • 05:27 18:21 CST
It is expected that a combination of lightning-active and dull weather is predicted.
Rainfall is forecasted for Thursday through next Wednesday.
The maximum temperature will be very similar during the next few days. Highs will range from 28°C to 30°C, while changes in the overnight low will be also barely noticeable, as the minimum temperature will fluctuate between 21°C and 22°C.
Thursday through next Wednesday, with the highest temperature of 30°C, will be the hottest days in San Marcos; the lowest daytime temperature of the period will be reached on Tuesday, peaking at 28°C.
Including the humidity's impact, the maximum feel-like temperature may increase and vary between a hot 32°C and a sweltering 35°C.
Updated: May 20, 2025 @ 04:53:10 UTC
Published by: Weather Atlas | About Us
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