Weather forecast for todayLa Unión, Guatemala

Weather forecast for today

Current condition 12:40 CST

  • 25°C
  • Feels like:
    25°C
Mostly Cloudy
Mostly Cloudy
  • Precipitation: 0mm
  • Wind: 10km/hN 10°
  • Humidity: 76%
  • Dewpoint: 21°C
  • Pressure: 1011.85mbar
  • Visibility: 8.05km
  • UV index: 9
  • ▼
In La Unión, currently, a blanket of clouds is keeping conditions mainly cloudy.
The temperature is a temperate 25°C. The current temperature is almost at the maximum expected 26°C for today.

Saturday 17. Oct 2026

  • 26°C
  • 20°C
Showers
Showers
  • Precip. probability: 43%
  • Precipitation: 12mm
  • Wind: 14km/hNNE 25°
  • Humidity: 80%
  • UV index: 10
  • Sunrise: 05:49 CST
  • Sunset: 17:35 CST
  • ▼
Today, in La Unión, scattered showers will occur throughout the day, with lighter rain expected during the afternoon.
The likelihood of rainfall is low. However, forecasted precipitation will be moderate. The temperature variation is predicted to range from a maximum of a moderately hot 26°C to a minimum of an agreeable 20°C.
Today's maximum temperature is expected to reflect the standard October high of 24.5°C.
Sunrise was at 05:49 and sunset will be at 17:35; the daylight will last for 11h and 47min.

Hourly overview

Hourly temperatures

Warmest hour: 14h 26°C.
Minimum temperature: 22°C.

Chance of precipitation

Highest chance: 22h 59%.

Hourly weather forecast

  • 13h
  • 25°C
  • Feels like:
    25°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0mm
  • Wind: 11km/hNNE 16°
  • Humidity: 76%
  • Pressure: 1011mbar
  • Visibility: 11km
  • UV index: 8
  • ▼
  • 14h
  • 26°C
  • Feels like:
    26°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0mm
  • Wind: 11km/hN 11°
  • Humidity: 75%
  • Pressure: 1010mbar
  • Visibility: 7km
  • UV index: 5
  • ▼
  • 15h
  • 25°C
  • Feels like:
    25°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0mm
  • Wind: 11km/hNNE 19°
  • Humidity: 75%
  • Pressure: 1009mbar
  • Visibility: 13km
  • UV index: 4
  • ▼
  • 16h
  • 24°C
  • Feels like:
    24°C
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 14km/hNNE 28°
  • Humidity: 82%
  • Pressure: 1010mbar
  • Visibility: 11km
  • UV index: 1
  • ▼
  • 17h
  • 23°C
  • Feels like:
    23°C
Showers
Showers
  • Precip. probability: 37%
  • Precipitation: 1mm
  • Wind: 12km/hNE 42°
  • Humidity: 87%
  • Pressure: 1010mbar
  • Visibility: 10km
  • UV index: 0
  • ▼
Sunset: 17:35
  • 18h
  • 22°C
  • Feels like:
    22°C
Showers
Showers
  • Precip. probability: 43%
  • Precipitation: 1mm
  • Wind: 10km/hNE 37°
  • Humidity: 90%
  • Pressure: 1011mbar
  • Visibility: 9km
  • UV index: 0
  • ▼
  • 19h
  • 22°C
  • Feels like:
    22°C
Showers
Showers
  • Precip. probability: 50%
  • Precipitation: 1mm
  • Wind: 8km/hNNE 31°
  • Humidity: 93%
  • Pressure: 1012mbar
  • Visibility: 8km
  • UV index: 0
  • ▼
  • 20h
  • 21°C
  • Feels like:
    23°C
Showers
Showers
  • Precip. probability: 50%
  • Precipitation: 1mm
  • Wind: 6km/hNE 49°
  • Humidity: 95%
  • Pressure: 1013mbar
  • Visibility: 7km
  • UV index: 0
  • ▼
  • 21h
  • 21°C
  • Feels like:
    22°C
Showers
Showers
  • Precip. probability: 47%
  • Precipitation: 1mm
  • Wind: 6km/hNE 42°
  • Humidity: 97%
  • Pressure: 1013mbar
  • Visibility: 7km
  • UV index: 0
  • ▼
  • 22h
  • 21°C
  • Feels like:
    22°C
Showers
Showers
  • Precip. probability: 59%
  • Precipitation: 1mm
  • Wind: 6km/hNE 49°
  • Humidity: 97%
  • Pressure: 1013mbar
  • Visibility: 5km
  • UV index: 0
  • ▼
  • 23h
  • 21°C
  • Feels like:
    22°C
Showers
Showers
  • Precip. probability: 58%
  • Precipitation: 1mm
  • Wind: 5km/hNE 39°
  • Humidity: 98%
  • Pressure: 1013mbar
  • Visibility: 4km
  • UV index: 0
  • ▼
Today, a combination of showery and cloud-filled weather is anticipated.
With minimal precipitation of 1mm, rainfall is expected from 17h to 23h.
The temperature will vary between a maximum of 26°C and a minimum of 21°C. The warmest part of the day is anticipated around 14h.
The highest temperature will be consistent with October's average maximum of 24.5°C. The lowest temperature is expected to be also moderately higher than the average minimum in October, typically 16.5°C.
Updated: Oct 17, 2026 @ 18:40:46 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (12:40 CST) in La Unión is 25°C.

Today, showers are expected at times, with breaks in the rain later in the day.

Moderate precipitation of 12mm is anticipated. The likelihood of rainfall is 43%.

Today, the highest temperature will be 26°C, while the lowest temperature will be 20°C.
Today, the maximum temperature will be in line with the average highest temperature in October. Today, the lowest temperature will be moderately higher than the average low temperature.

On Saturday, in La Unión, sunrise was at 05:49 and sunset will be at 17:35 (CST).

In La Unión, today, there will be 11h and 47min of daylight.