Agana Heights, Guam Weather Conditions

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Current Conditions

  • 79°
  • Partly Cloudy
  • Wind: ESE 9 mph
  • Humidity: 88%
  • Visibility: 10.0 miles
  • Dew Point: 75°
  • Pressure: 29.74 in. -

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Next 12 Hours

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Mostly Cloudy
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 82 °
  • Chance of T-Storms
  • Saturday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: NA
  • Chance of a Thunderstorm

Forecast for Agana Heights, Guam

Updated: 1:00 AM ChST on October 21, 2014

  • Friday

    Partly cloudy with a chance of a thunderstorm. High of 86F with a heat index of 93F. Breezy. Winds from the ESE at 15 to 20 mph. Chance of rain 40%.

  • Friday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 82F with a heat index of 91F. Winds from the SE at 5 to 15 mph. Chance of rain 70% with rainfall amounts near 0.7 in. possible.

  • Saturday

    Partly cloudy with a chance of a thunderstorm. High of 86F with a heat index of 91F. Winds less than 5 mph. Chance of rain 20%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Maite, Maite, GU

Updated: 2:39 AM ChST

Temperature: 78.4 °F Dew Point: 76 °F Humidity: 94% Wind: SE at 5.0 mph Pressure: 29.73 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Western Blvd, Tamuning

Updated: 2:36 AM ChST

Temperature: 77.5 °F Dew Point: 75 °F Humidity: 93% Wind: North at - Pressure: 29.78 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: Ordot Dump, Chalan Pago Ordot

Updated: 2:39 AM ChST

Temperature: 77.2 °F Dew Point: 77 °F Humidity: 98% Wind: ENE at 2.9 mph Pressure: 29.71 in Hourly Precipitation: 0.01 in Heat Index: 78 °F Graphs

Location: Perezville, Tamuning, Guam

Updated: 2:35 AM ChST

Temperature: 78.2 °F Dew Point: 76 °F Humidity: 92% Wind: ENE at 4.0 mph Pressure: 29.61 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

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

Updated: 2:38 AM ChST

Temperature: 80.8 °F Dew Point: 77 °F Humidity: 89% Wind: East at 13.0 mph Pressure: 29.66 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Ypaopao Estates, Dededo

Updated: 2:37 AM ChST

Temperature: 77.7 °F Dew Point: 72 °F Humidity: 83% Wind: SE at 4.9 mph Pressure: 29.29 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion

Area forecast discussion...updated 
National Weather Service tiyan GU 
427 PM chst Thursday Oct 30 2014 

Updated to include micronesia discussions 

Marianas synopsis... 
tropical disturbance 96w is centered well west of Guam at about 
13n138e...but a monsoon trough extends east-southeast from there to south of 
Guam...then on to Chuuk and beyond. Satellite shows widespread 
cloudiness...scattered showers and isolated thunderstorms across 
the marianas in moist unstable easterly flow north of the trough. 


except for some minor adjustments to winds the next couple of significant changes have been made to the forecast. 
Models maintain the monsoon trough through about Monday...and the 
GFS in particular forms a weak circulation over the marianas for 
Sunday through Tuesday. Though such a circulation is a distinct 
possibility in the current monsoon trough...not ready to buy it 
until the European model (ecmwf) shows a similar development and something shows up 
in satellite imagery. In any case...looks wet through the weekend. 


boosted seas just a bit based on buoys and latest ww3 guidance but 
otherwise no important changes. Swell direction has come around to 
east-northeast and should remain there for the next few days. This will put 
the highest surf along east facing reefs for the next few days. 


Eastern micronesia... 
a loosely organized monsoon trough exists across eastern micronesia. 
A small circulation just north of Majuro will provide a focusing 
mechanism for convection overnight. Convection seems to be confined 
to northern waters of Majuro and should move away from Majuro later 
tonight. The next disturbance east of the date line will approach 
the Marshall Islands Saturday but models show much of the shower 
activity staying north of Majuro over the weekend. An inverted 
trough is expected to arrive late Sunday at Majuro and should bring 
increased cloud cover and possible scattered showers to the atoll. 
Ridging will maintain mainly quiet weather at Kosrae through the 
week. For Pohnpei...satellite imagery indicates convection has 
lifted primarily to the north of the coastal waters. Models show a 
less active pattern across Pohnpei state through the weekend. 

A large storm system affecting New Zealand will generate a south 
swell that may affect Majuro over the weekend. Global wave model 
indicates a small swell with a long period could reach the Marshall 
Islands late Saturday. For now...swell appears to be small and tide 
cycles are not at highest level above MLLW during this time frame. 
Will have to watch this event closely but for now appears swell 
height is below that of which would cause significant inundation. 


Western micronesia... 
satellite imagery depicts broad monsoonal flow southeast of a 
tropical disturbance centered west of Guam which was recently 
upgraded to a medium potential by Joint Typhoon Warning Center. 
Low-level convergence along the leading edge of the stronger 
westerly flow is generating scattered showers and isolated 
thunderstorms mainly east of Chuuk. This activity is expected to 
shift westward overnight and move west of Chuuk waters Friday. Drier 
weather is prognosticated Friday night through Monday as ridging builds 
over the state. The tropical disturbance will pass to the north of 
Yap and Koror over the coming days. Most of the shower activity 
associated with the system will stay north of these locations. 
Converging southwesterly flow will maintain mostly cloudy skies and 
a chance for thunderstorms through the weekend for both Yap and 
Koror. Fair weather should return Monday as the tropical disturbance 
moves farther north and west. 


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



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