Agana Heights, Guam Weather Conditions

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 81°
  • Clear
  • Wind: East 7 mph
  • Humidity: 91%
  • Visibility: 10.0 miles
  • Dew Point: 78°
  • Pressure: 29.83 in. 0
  • Heat Index: 89

Select a Section

Click a section below for more information.

Next 12 Hours

7  am
10  am
1  pm
4  pm
7  pm
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
Rain Showers
Rain Showers
79°
84°
84°
84°
82°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Thunderstorm
  • High: 90 °
  • Low: 77 °
  • Thunderstorm
  • Monday
  • Rain Showers
  • High: 90 °
  • Low: 77 °
  • Rain Showers
  • Tuesday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 79 °
  • Chance of a Thunderstorm
  • Wednesday
  • Partly Cloudy
  • High: 88 °
  • Low: 77 °
  • Partly Cloudy
  • Thursday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 77 °
  • Chance of T-Storms

Forecast for Agana Heights, Guam

Updated: 7:00 AM ChST on August 24, 2014

  • Sunday

    Partly cloudy with thunderstorms and rain showers. High of 90F. Winds from the East at 5 to 15 mph shifting to the North in the afternoon. Chance of rain 20%.

  • Sunday Night

    Partly cloudy with rain showers. Low of 77F. Winds from the ENE at 5 to 10 mph. Chance of rain 20%.

  • Monday

    Partly cloudy with rain showers. High of 90F. Winds from the ENE at 10 to 15 mph. Chance of rain 20%.

  • Monday Night

    Partly cloudy with rain showers. Low of 77F. Winds from the East at 5 to 10 mph shifting to the West after midnight. Chance of rain 20%.

  • Tuesday

    Partly cloudy with rain showers, then a chance of a thunderstorm and rain in the afternoon. High of 88F. Winds from the East at 5 to 15 mph. Chance of rain 20%.

  • Tuesday Night

    Mostly cloudy with a chance of a thunderstorm and rain. Low of 79F. Winds from the SE at 10 to 15 mph. Chance of rain 60%.

  • Wednesday

    Partly cloudy. High of 88F. Winds from the SE at 10 to 15 mph.

  • Wednesday Night

    Partly cloudy in the evening, then overcast with a chance of a thunderstorm and rain. Low of 77F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Thursday

    Mostly cloudy with a chance of a thunderstorm and rain. High of 88F. Winds from the East at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.

  • Thursday Night

    Clear with a chance of a thunderstorm. Low of 77F. Winds from the ENE at 5 to 15 mph. Chance of rain 40%.

  • Friday

    Clear. High of 88F. Winds from the NE at 5 to 10 mph.

  • Friday Night

    Partly cloudy. Low of 79F. Winds from the NNE at 10 to 15 mph.

  • Saturday

    Mostly cloudy with a chance of a thunderstorm. High of 88F. Winds from the ENE at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.

  • Saturday Night

    Partly cloudy with a chance of a thunderstorm. Low of 84F with a heat index of 91F. Winds less than 5 mph. Chance of rain 40%.

  • Sunday

    Partly cloudy. High of 88F. Winds less than 5 mph.

  • Sunday Night

    Clear with a chance of a thunderstorm. Low of 79F. Winds less than 5 mph. Chance of rain 20%.

  • Monday

    Partly cloudy with a chance of a thunderstorm. High of 84F. Winds less than 5 mph. Chance of rain 50%.

  • Monday Night

    Partly cloudy with a chance of a thunderstorm. Low of 77F. Winds less than 5 mph. Chance of rain 40%.

  • Tuesday

    Partly cloudy. High of 84F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy with a chance of a thunderstorm. Low of 77F. Winds less than 5 mph. Chance of rain 40%.

  • Wednesday

    Partly cloudy. High of 84F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 79F. Winds less than 5 mph.

  • Thursday

    Clear. High of 84F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Maite, Maite, GU

Updated: 5:24 AM ChST

Temperature: 80.0 °F Dew Point: 78 °F Humidity: 94% Wind: ENE at 2.0 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Perezville, Tamuning, Guam

Updated: 5:50 AM ChST

Temperature: 79.7 °F Dew Point: 77 °F Humidity: 91% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Mangilao, Mangilao, GU

Updated: 5:53 AM ChST

Temperature: 78.9 °F Dew Point: 73 °F Humidity: 83% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Jeffs Pirates Cove, Guam, Ipan Talofofo, GU

Updated: 5:53 AM ChST

Temperature: 83.4 °F Dew Point: 79 °F Humidity: 86% Wind: ENE at 7.0 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Ypaopao Estates, Dededo

Updated: 5:53 AM ChST

Temperature: 78.1 °F Dew Point: 75 °F Humidity: 91% Wind: Calm Pressure: 29.41 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service tiyan GU 
603 PM chst Sat Aug 23 2014 


Marianas synopsis... 
pgua WSR-88D radar shows isolated showers and thunderstorms within 
the marine zones. Satellite imagery shows a swath of clouds over 
the marianas containing showers and thunderstorms from 11n to 19n. 


&& 


Discussion... 
an upper-low is stationary and slightly northwest the marianas. 
Models indicate and satellite confirms that a surface ridge is to 
the east of the marianas. The surface ridge would bring partly 
cloudy skies...but this will be tempered by the upper low which 
will prolong the presence of isolated thunderstorms. A weak 
surface trough now at about 160e will likely be enhanced by the 
upper low to bring mostly cloudy skies with isolated showers and 
thunderstorms about Monday. 


Combined seas of 1 to 2 feet will double to between 2 and 4 feet 
Monday. They are then expected to subside to between 1 and 2 feet 
again by late in the week. All of these are way below advisory 
criteria...so no advisories are foreseen through the rest of 
August. 


&& 


Eastern micronesia... 
a surface trough could be found across eastern micronesia from 
1n165e to around 9n178e. It will move slowly northwestward before 
washing out Monday night. Weak high pressure will prevail over the 
area through Tuesday before another trough develops across eastern 
micronesia Wednesday. Despite the passage of several troughs over 
eastern micronesia...moisture is lacking. Expect only mostly cloudy 
skies from time to time with isolated showers through the forecast. 
The winds across the area are also light and will remain so through 
the forecast. 


&& 


Western micronesia... 
an upper-level trough helped touch off thunderstorms over Palau this 
morning. This area has diminished and only mostly cloudy skies are 
expected tonight. 


Surface convergence will bring scattered showers and isolated 
thunderstorms to Yap tonight. This convergence area will move west 
and bring clouds and isolated thunderstorms to Palau Sunday and 
Sunday night. 


Models show a weak trough passing over Palau and Yap Tuesday and 
Wednesday. Moisture will be lacking...so expect only shifting 
winds. 


A surface trough will move across Chuuk late tonight and Saturday. 
As with other troughs trekking across micronesia...it will be 
associated with limited moisture. Partly cloudy skies and isolated 
thunderstorms are expected through the forecast for Chuuk. 


&& 


Gum watches/warnings/advisories... 
GU...none. 
Marianas waters...none. 
&& 


$$ 


Devita/ziobro 



National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.