Weather forecast for tomorrowGuam National Wildlife Refuge, GU

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 82°F
  • 79°F
Showers / Wind
Showers / Wind
  • Precip. probability: 65%
  • Precipitation: 3.27"
  • Wind: 25mphSE 145°
  • Humidity: 88%
  • UV index: 6
  • Sunrise: 6:11 am ChST
  • Sunset: 5:59 pm ChST
  • ▼
Tomorrow, on Monday, windy weather and intermittent showers are also anticipated.
Excessive precipitation of 3.27" is expected. Slight changes in temperature are forecasted, reaching a high of a warm 82.4°F and decreasing to a low of a temperate 78.8°F.
The maximum heat index, which measures the combined effect of heat and moisture, is computed to be a hot 91.4°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
Sunrise will be at 6:11 am and sunset at 5:59 pm; tomorrow's daylight will last for 11h and 47min.

Hourly overview

Hourly temperatures

Warmest period: 9 am - 6 pm 91°C.
Minimum temperature: 90°C.

Chance of precipitation

Highest chance: 12 am 72%.

Hourly weather forecast

  • 12 am
  • 81°F
  • Feels like:
    90°F
Showers / Wind
Showers / Wind
  • Precip. probability: 72%
  • Precipitation: 0.08"
  • Wind: 28mphSE 139°
  • Humidity: 89%
  • Pressure: 29.71"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 2 am
  • 81°F
  • Feels like:
    88°F
Showers / Wind
Showers / Wind
  • Precip. probability: 77%
  • Precipitation: 0.2"
  • Wind: 27mphSE 144°
  • Humidity: 90%
  • Pressure: 29.71"Hg
  • Visibility: 2mi
  • UV index: 0
  • ▼
  • 4 am
  • 81°F
  • Feels like:
    88°F
Showers / Wind
Showers / Wind
  • Precip. probability: 49%
  • Precipitation: 0.04"
  • Wind: 27mphSE 146°
  • Humidity: 91%
  • Pressure: 29.71"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 6 am
  • 81°F
  • Feels like:
    90°F
Showers / Wind
Showers / Wind
  • Precip. probability: 48%
  • Precipitation: 0.04"
  • Wind: 24mphSE 146°
  • Humidity: 89%
  • Pressure: 29.74"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunrise: 6:11 am
  • 8 am
  • 81°F
  • Feels like:
    90°F
Showers / Wind
Showers / Wind
  • Precip. probability: 66%
  • Precipitation: 0.08"
  • Wind: 25mphSSE 146°
  • Humidity: 89%
  • Pressure: 29.8"Hg
  • Visibility: 7mi
  • UV index: 1
  • ▼
  • 10 am
  • 82°F
  • Feels like:
    91°F
Showers / Wind
Showers / Wind
  • Precip. probability: 53%
  • Precipitation: 0.04"
  • Wind: 24mphSE 144°
  • Humidity: 87%
  • Pressure: 29.83"Hg
  • Visibility: 7mi
  • UV index: 4
  • ▼
  • 12 pm
  • 82°F
  • Feels like:
    91°F
Showers / Wind
Showers / Wind
  • Precip. probability: 57%
  • Precipitation: 0.04"
  • Wind: 24mphSSE 147°
  • Humidity: 88%
  • Pressure: 29.8"Hg
  • Visibility: 7mi
  • UV index: 6
  • ▼
  • 2 pm
  • 82°F
  • Feels like:
    93°F
Showers / Wind
Showers / Wind
  • Precip. probability: 54%
  • Precipitation: 0.04"
  • Wind: 22mphSE 146°
  • Humidity: 87%
  • Pressure: 29.77"Hg
  • Visibility: 7mi
  • UV index: 4
  • ▼
  • 4 pm
  • 82°F
  • Feels like:
    91°F
Showers / Wind
Showers / Wind
  • Precip. probability: 48%
  • Precipitation: 0.04"
  • Wind: 20mphSE 145°
  • Humidity: 86%
  • Pressure: 29.77"Hg
  • Visibility: 7mi
  • UV index: 1
  • ▼
Sunset: 5:59 pm
  • 6 pm
  • 81°F
  • Feels like:
    91°F
Showers
Showers
  • Precip. probability: 43%
  • Precipitation: 0.04"
  • Wind: 18mphSE 140°
  • Humidity: 88%
  • Pressure: 29.8"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 8 pm
  • 81°F
  • Feels like:
    90°F
Showers
Showers
  • Precip. probability: 40%
  • Precipitation: 0.04"
  • Wind: 17mphSE 135°
  • Humidity: 89%
  • Pressure: 29.85"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 10 pm
  • 81°F
  • Feels like:
    90°F
Few Showers
Few Showers
  • Precip. probability: 32%
  • Precipitation: 0.04"
  • Wind: 16mphSE 127°
  • Humidity: 89%
  • Pressure: 29.85"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, primarily damp and occasionally overcast weather is anticipated.
Rainfall is anticipated from 12 am to 8 pm and at 10 pm. With moderate precipitation of 0.2", most rainfall is expected at 2 am.
The temperature difference will be indistinguishable, with a minimum of 80.6°F and a maximum of 82.4°F. The feels-like temperature difference throughout the day will be indistinguishable, with the lowest temperature of 87.8°F and the highest temperature of 93.2°F.
Updated: Oct 17, 2026 @ 15:45:01 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, expect intermittent showers and windy conditions throughout the day.

Yes, it will rain tomorrow. Weather alert - severe precipitation of 3.27" is predicted.

Tomorrow, the maximum temperature will be 82.4°F, while the minimum temperature will be 78.8°F. The maximum heat index, which reflects the perceived temperature due to humidity levels, is computed to be 91.4°F.
The highest temperature will be noticeably higher than the average maximum of 32°F in October. The lowest temperature will be also notably higher than the average low of 32°F.

On Monday, in Guam National Wildlife Refuge, sunrise will be at 6:11 am and sunset at 5:59 pm (ChST).

In Guam National Wildlife Refuge, the length of the day tomorrow will be 11h and 47min.