Weather forecast for todaySan Luis, Guatemala

Weather forecast for today

Current condition 11:43 CST

  • 27°C
  • Feels like:
    30°C
Mostly Cloudy
Mostly Cloudy
  • Precipitation: 0mm
  • Wind: 16km/hNW 310°
  • Humidity: 85%
  • Dewpoint: 24°C
  • Pressure: 1012.53mbar
  • Visibility: 11.27km
  • UV index: 8
  • ▼
At the moment, in San Luis, a blanket of clouds is keeping conditions mainly cloudy.
The temperature is a moderately hot 27°C, the apparent reading is evaluated at a blazing 30°C. The current temperature is the maximum expected temperature for today.

Saturday 17. Oct 2026

  • 27°C
  • 21°C
PM Thunderstorms
PM Thunderstorms
  • Precip. probability: 83%
  • Precipitation: 8mm
  • Wind: 16km/hNW 325°
  • Humidity: 88%
  • UV index: 8
  • Sunrise: 05:50 CST
  • Sunset: 17:35 CST
  • ▼
Today, on Saturday, 17th of October, storm clouds will develop in the afternoon, bringing thunder and rain.
With a high probability, light precipitation is predicted. The highest temperature will be a warm 27°C, while the lowest anticipated temperature is a delightful 21°C.
The maximum heat index, which factors the actual air temperature with the relative humidity, is evaluated at a blazing 31°C. Take into consideration that the heat index values are calculated for shade and light wind conditions.
Today, the predicted high will correspond with the regular October temperature of 28.6°C.
Sunrise was at 05:50 and sunset will be at 17:35; the daylight will last for 11h and 45min.

Hourly overview

Hourly temperatures

Warmest period: 12h - 14h 30°C.
Coldest hour: 18h 23°C.

Chance of precipitation

Highest chance: 14h 80%.

Hourly weather forecast

  • 12h
  • 27°C
  • Feels like:
    30°C
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 16km/hNW 321°
  • Humidity: 84%
  • Pressure: 1012mbar
  • Visibility: 11km
  • UV index: 8
  • ▼
  • 13h
  • 26°C
  • Feels like:
    30°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 64%
  • Precipitation: 1mm
  • Wind: 16km/hNW 324°
  • Humidity: 86%
  • Pressure: 1011mbar
  • Visibility: 11km
  • UV index: 4
  • ▼
  • 14h
  • 27°C
  • Feels like:
    30°C
Thunderstorms
Thunderstorms
  • Precip. probability: 80%
  • Precipitation: 2mm
  • Wind: 14km/hNW 321°
  • Humidity: 83%
  • Pressure: 1010mbar
  • Visibility: 9km
  • UV index: 5
  • ▼
  • 15h
  • 26°C
  • Feels like:
    30°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 59%
  • Precipitation: 1mm
  • Wind: 16km/hNW 322°
  • Humidity: 85%
  • Pressure: 1010mbar
  • Visibility: 10km
  • UV index: 2
  • ▼
  • 16h
  • 25°C
  • Feels like:
    25°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 46%
  • Precipitation: 0mm
  • Wind: 12km/hNW 326°
  • Humidity: 91%
  • Pressure: 1010mbar
  • Visibility: 10km
  • UV index: 1
  • ▼
  • 17h
  • 24°C
  • Feels like:
    24°C
Cloudy
Cloudy
  • Precip. probability: 20%
  • Precipitation: 0mm
  • Wind: 10km/hNNW 328°
  • Humidity: 92%
  • Pressure: 1010mbar
  • Visibility: 10km
  • UV index: 0
  • ▼
Sunset: 17:35
  • 18h
  • 23°C
  • Feels like:
    23°C
Few Showers
Few Showers
  • Precip. probability: 41%
  • Precipitation: 1mm
  • Wind: 9km/hNNW 327°
  • Humidity: 96%
  • Pressure: 1011mbar
  • Visibility: 4km
  • UV index: 0
  • ▼
  • 19h
  • 23°C
  • Feels like:
    24°C
Showers
Showers
  • Precip. probability: 58%
  • Precipitation: 1mm
  • Wind: 6km/hNNW 327°
  • Humidity: 99%
  • Pressure: 1012mbar
  • Visibility: 10km
  • UV index: 0
  • ▼
  • 20h
  • 22°C
  • Feels like:
    24°C
Showers
Showers
  • Precip. probability: 46%
  • Precipitation: 1mm
  • Wind: 7km/hN 350°
  • Humidity: 100%
  • Pressure: 1013mbar
  • Visibility: 8km
  • UV index: 0
  • ▼
  • 21h
  • 22°C
  • Feels like:
    24°C
Showers
Showers
  • Precip. probability: 37%
  • Precipitation: 1mm
  • Wind: 7km/hNNW 347°
  • Humidity: 100%
  • Pressure: 1013mbar
  • Visibility: 9km
  • UV index: 0
  • ▼
  • 22h
  • 22°C
  • Feels like:
    24°C
Showers
Showers
  • Precip. probability: 39%
  • Precipitation: 1mm
  • Wind: 7km/hNNW 346°
  • Humidity: 100%
  • Pressure: 1013mbar
  • Visibility: 8km
  • UV index: 0
  • ▼
  • 23h
  • 22°C
  • Feels like:
    24°C
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 8km/hNNW 336°
  • Humidity: 100%
  • Pressure: 1013mbar
  • Visibility: 8km
  • UV index: 0
  • ▼
Today, a combination of rain-filled, unstable and dull weather is expected.
Rainfall is expected from 13h to 15h, and from 18h to 22h. With light precipitation of 2mm, most rainfall is expected at 14h.
The temperature will vary between a minimum of 22°C and a maximum of 27°C. The warmest part of the day will be at 12h and 14h.
The temperature today will be in line with the average high in October. Today, the minimum temperature will be also in line with the average low for October.
Updated: Oct 17, 2026 @ 17:43:51 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (11:43 CST) it is 27°C in San Luis. Feels-like temperature is 30°C.

On Saturday, stormy weather with frequent thunder and rain bursts is expected.

Light precipitation of 8mm is expected. The possibility of rainfall is high at 83%.

Today, the highest temperature will be 27°C, while the lowest temperature will be 21°C. The maximum heat index, which reflects the perceived temperature due to humidity levels, is estimated at 31°C.
Today, the maximum temperature will be in line with the average highest temperature in October. Today, the lowest temperature will be also in line with the average low temperature.

On Saturday, in San Luis, sunrise was at 05:50 and sunset will be at 17:35 (CST).

In San Luis, today, there will be 11h and 45min of daylight.