Weather forecast for tomorrow
Santo Tomás La Unión, Guatemala

Weather forecast for tomorrow

Friday, 20. Jun

Thunderstorms
05:36

18:38
CST
Thunderstorms
27°C / 20°C
  • Wind: 9km/h S
  • Humidity: 80%
  • Precip. probability: 99%
  • Precipitation: 23mm
  • UV index: 5
Tomorrow, on Friday, 20th of June, the potential for thunderstorms remains.
Substantial precipitation is forecasted. Temperature span will be from a high of a moderately hot 27°C to a low of a pleasant 20°C.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is assessed at a blazing 30°C. Note that heat index values are valued for light wind and location in the shade.
Forecasts suggest the maximum temperature will be relatively lower than June's average of 29.3°C.
Sunrise will be at 05:36 and sunset at 18:38; tomorrow's daylight will last for 13h and 2min.

Frequently asked questions

What is the weather forecast for Santo Tomás La Unión for tomorrow?
On Friday, in Santo Tomás La Unión, expect isolated thunderstorms in the area.
Will it rain tomorrow?
Yes, it will rain tomorrow. High precipitation of 23mm is anticipated.
What will be the maximum temperature tomorrow in Santo Tomás La Unión?
Tomorrow, the highest temperature will be 27°C, while the lowest temperature will be 20°C. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is computed to be 30°C.
The highest temperature will be slightly cooler than the average maximum of 29.3°C in June. The lowest temperature will be in line with the average low of 19.9°C.
When are sunrise and sunset tomorrow?
On Friday, in Santo Tomás La Unión, sunrise will be at 05:36 and sunset at 18:38 (CST).
How long will the day be tomorrow in Santo Tomás La Unión?
In Santo Tomás La Unión, tomorrow, there will be 13h and 2min of daylight.

Hourly weather forecast

0h
  • 22°C
  • Feels like:
    22°C
Cloudy
Cloudy
  • Wind: 5km/h NNE
  • Pressure: 1014mbar
  • Humidity: 86%
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Visibility: 13km
2h
  • 21°C
  • Feels like:
    22°C
Cloudy
Cloudy
  • Wind: 3km/h N
  • Pressure: 1013mbar
  • Humidity: 86%
  • Precip. probability: 10%
  • Precipitation: 0mm
  • Visibility: 14km
4h
  • 21°C
  • Feels like:
    22°C
Cloudy
Cloudy
  • Wind: 4km/h NNE
  • Pressure: 1012mbar
  • Humidity: 87%
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Visibility: 15km
Sunrise: 05:36
6h
  • 21°C
  • Feels like:
    21°C
Cloudy
Cloudy
  • Wind: 5km/h NNE
  • Pressure: 1013mbar
  • Humidity: 85%
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Visibility: 13km
8h
  • 24°C
  • Feels like:
    25°C
Cloudy
Cloudy
  • Wind: 4km/h ENE
  • Pressure: 1013mbar
  • Humidity: 77%
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Visibility: 16km
10h
  • 26°C
  • Feels like:
    28°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 7km/h SSW
  • Pressure: 1014mbar
  • Humidity: 75%
  • Precip. probability: 35%
  • Precipitation: 1mm
  • Visibility: 11km
12h
  • 26°C
  • Feels like:
    29°C
Thunderstorms
Thunderstorms
  • Wind: 8km/h SSW
  • Pressure: 1013mbar
  • Humidity: 76%
  • Precip. probability: 96%
  • Precipitation: 3mm
  • Visibility: 6km
14h
  • 26°C
  • Feels like:
    28°C
Thunderstorms
Thunderstorms
  • Wind: 7km/h SSW
  • Pressure: 1013mbar
  • Humidity: 78%
  • Precip. probability: 97%
  • Precipitation: 4mm
  • Visibility: 4km
16h
  • 24°C
  • Feels like:
    25°C
Showers
Showers
  • Wind: 8km/h SSW
  • Pressure: 1013mbar
  • Humidity: 85%
  • Precip. probability: 90%
  • Precipitation: 2mm
  • Visibility: 6km
18h
  • 23°C
  • Feels like:
    24°C
Showers
Showers
  • Wind: 8km/h NE
  • Pressure: 1013mbar
  • Humidity: 88%
  • Precip. probability: 87%
  • Precipitation: 1mm
  • Visibility: 7km
Sunset: 18:38
20h
  • 22°C
  • Feels like:
    23°C
Showers
Showers
  • Wind: 5km/h NNE
  • Pressure: 1014mbar
  • Humidity: 90%
  • Precip. probability: 44%
  • Precipitation: 1mm
  • Visibility: 9km
22h
  • 22°C
  • Feels like:
    23°C
Few Showers
Few Showers
  • Wind: 5km/h NNE
  • Pressure: 1014mbar
  • Humidity: 88%
  • Precip. probability: 31%
  • Precipitation: 1mm
  • Visibility: 13km
Tomorrow, on Friday, a combination of cloudy, rain-soaked and unstable weather is predicted.
Rainfall is predicted from 10h to 23h. With moderate precipitation of 4mm, most rainfall is expected at 14h.
The temperature will be between the lowest temperature of 21°C and the highest temperature of 26°C. The warmest part of the day will be from 10h to 14h.
The highest temperature will be moderately lower than June's average maximum of 29.3°C. The expected low will be also similar to the average minimum in June, which is 19.9°C.
Updated: Jun 19, 2025 @ 23:26:50 UTC
Published by: Weather Atlas | About Us
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