Weather forecast for 10 daysMerizo, GU

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 81°F
  • 79°F
Heavy Rain / Wind
Heavy Rain / Wind
  • Precip. probability: 100%
  • Precipitation: 4.76"
  • Wind: 78mphSE 145°
  • Humidity: 94%
  • UV index: 4
  • Sunrise: 6:12 am ChST
  • Sunset: 6:00 pm ChST
  • ▼
Tomorrow, persistent heavy rain and gusty winds are forecasted, creating waterlogged roads and poor visibility.
Extreme precipitation of 4.76" is predicted. A daytime temperature reaching up to a temperate 80.6°F will subtly contrast with a nighttime low of a moderately hot 78.8°F.
The maximum heat index, which factors the actual air temperature with the relative humidity, is appraised at a humid 87.8°F. Note that heat index values are valued for light wind and location in the shade.
Tomorrow, the expected high will be moderately lower than the average October maximum of 84.4°F.
Sunrise will be at 6:12 am and sunset at 6:00 pm; tomorrow's daylight will last for 11h and 49min.

10-day overview

Daily temperatures

Warmest period: Tuesday - Monday 84°C.
Coldest day: tomorrow 81°C.

Chance of precipitation

Highest chance: today - tomorrow 100%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 79°F
Heavy Rain / Wind
Heavy Rain / Wind
  • Precip. probability: 100%
  • Precipitation: 1.73"
  • Wind: 90mphNNE 33°
  • Humidity: 94%
  • UV index: 0
  • Sunrise: 6:11 am ChST
  • Sunset: 6:01 pm ChST
  • ▼
  • Sunday
  • Oct 18, 2026
  • 81°F
  • 79°F
Heavy Rain / Wind
Heavy Rain / Wind
  • Precip. probability: 100%
  • Precipitation: 4.76"
  • Wind: 78mphSE 145°
  • Humidity: 94%
  • UV index: 4
  • Sunrise: 6:12 am ChST
  • Sunset: 6:00 pm ChST
  • ▼
  • Monday
  • Oct 19, 2026
  • 82°F
  • 81°F
Showers / Wind
Showers / Wind
  • Precip. probability: 73%
  • Precipitation: 0.59"
  • Wind: 24mphSSE 151°
  • Humidity: 88%
  • UV index: 6
  • Sunrise: 6:12 am ChST
  • Sunset: 6:00 pm ChST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 84°F
  • 79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 12mphESE 110°
  • Humidity: 83%
  • UV index: 10
  • Sunrise: 6:12 am ChST
  • Sunset: 5:59 pm ChST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 84°F
  • 79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • Wind: 11mphNE 56°
  • Humidity: 83%
  • UV index: 10
  • Sunrise: 6:12 am ChST
  • Sunset: 5:59 pm ChST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 84°F
  • 77°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 24%
  • Precipitation: 0.12"
  • Wind: 12mphNE 56°
  • Humidity: 83%
  • UV index: 11
  • Sunrise: 6:12 am ChST
  • Sunset: 5:58 pm ChST
  • ▼
  • Friday
  • Oct 23, 2026
  • 84°F
  • 79°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 24%
  • Precipitation: 0.2"
  • Wind: 12mphENE 64°
  • Humidity: 83%
  • UV index: 11
  • Sunrise: 6:12 am ChST
  • Sunset: 5:58 pm ChST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 84°F
  • 79°F
Showers
Showers
  • Precip. probability: 47%
  • Precipitation: 0.28"
  • Wind: 11mphENE 75°
  • Humidity: 84%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:57 pm ChST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 84°F
  • 79°F
Showers
Showers
  • Precip. probability: 40%
  • Precipitation: 0.24"
  • Wind: 8mphE 84°
  • Humidity: 83%
  • UV index: 10
  • Sunrise: 6:13 am ChST
  • Sunset: 5:57 pm ChST
  • ▼
  • Monday
  • Oct 26, 2026
  • 84°F
  • 79°F
Showers
Showers
  • Precip. probability: 42%
  • Precipitation: 0.12"
  • Wind: 6mphENE 74°
  • Humidity: 82%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:56 pm ChST
  • ▼
Over the next ten days, a mix of showery, cloudy and dry and sunny weather is forecasted.
Rain is forecasted for Saturday through Monday, Wednesday through next Monday.
Temperature differences will be unnoticeable over the next several days. Highs will range from 80.6°F to 84.2°F, while changes in the overnight low will be also barely noticeable, as the minimum temperature is expected to range between 77°F and 80.6°F.
The hottest days in Merizo will be Tuesday through next Monday, with a maximum of 84.2°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 80.6°F.
Taking the humidity into consideration, the maximum feel-like temperature may increase considerably and vary between a hot 87.8°F and a torrid 96.8°F.
Updated: Oct 17, 2026 @ 13:49:38 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, strong wind gusts with steady downpours are anticipated, requiring caution while commuting.

Yes, it will rain tomorrow. Weather alert - extreme precipitation of 4.76" is anticipated.

Tomorrow, the highest temperature will be 80.6°F, while the lowest temperature will be 78.8°F. The maximum heat index, which combines air temperature and relative humidity, is estimated at 87.8°F.
The maximum temperature tomorrow will be slightly cooler than the average highest temperature in October. The lowest temperature will be also a couple of degrees lower than the average low of 82.6°F.

On Sunday, in Merizo, sunrise will be at 6:12 am and sunset at 6:00 pm (ChST).

Tomorrow, the daylight will last for 11h and 49min.