Agana Heights, Guam Weather Conditions

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Current Conditions

  • 78°
  • Clear
  • Wind: ENE 12 mph
  • Humidity: 87%
  • Visibility: 10.0 miles
  • Dew Point: 74°
  • Pressure: 29.88 in. -

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Next 12 Hours

2  am
5  am
8  am
11  am
2  pm
Chance of a Thunderstorm
Chance of T-storms
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Chance of a Thunderstorm
Chance of T-storms
78°
78°
81°
85°
85°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Partly Cloudy
  • High: 86 °
  • Low: 76 °
  • Partly Cloudy
  • Monday
  • Chance of Rain
  • High: 85 °
  • Low: 77 °
  • Chance of Rain
  • Tuesday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 77 °
  • Chance of T-Storms
  • Wednesday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 77 °
  • Chance of T-Storms
  • Thursday
  • Thunderstorm
  • High: 85 °
  • Low: 77 °
  • T-Storms

Forecast for Agana Heights, Guam

Updated: 1:19 AM ChST on January 19, 2015

  • Sunday

    Partly cloudy. High 86F. Winds ENE at 15 to 25 mph.

  • Sunday Night

    Mainly clear skies. Low 76F. Winds ENE at 10 to 15 mph.

  • Monday

    Cloudy with occasional showers. High near 85F. Winds ENE at 15 to 25 mph. Chance of rain 40%.

  • Monday Night

    Partial cloudiness early, with scattered showers and thunderstorms later during the night. Low 77F. Winds ENE at 10 to 15 mph. Chance of rain 40%.

  • Tuesday

    Scattered thunderstorms. High 86F. Winds ENE at 15 to 25 mph. Chance of rain 40%.

  • Tuesday Night

    Scattered thunderstorms during the evening becoming more widespread overnight. Low 77F. Winds ENE at 10 to 20 mph. Chance of rain 80%.

  • Wednesday

    Mixed clouds and sun with scattered thunderstorms. High 88F. Winds ENE at 15 to 25 mph. Chance of rain 60%.

  • Wednesday Night

    Variable clouds with scattered thunderstorms. Low 77F. Winds ENE at 10 to 20 mph. Chance of rain 60%.

  • Thursday

    Thunderstorms. High near 85F. Winds ENE at 15 to 25 mph. Chance of rain 80%.

  • Thursday Night

    Thunderstorms likely in the evening. Then the chance of scattered thunderstorms later on. Low 77F. Winds ENE at 10 to 20 mph. Chance of rain 80%.

  • Friday

    Thunderstorms likely in the morning. Then the chance of scattered thunderstorms in the afternoon. High 86F. Winds ENE at 15 to 25 mph. Chance of rain 80%.

  • Friday Night

    Thunderstorms. Low 77F. Winds E at 10 to 15 mph. Chance of rain 80%.

  • Saturday

    Thunderstorms. High 86F. Winds E at 10 to 20 mph. Chance of rain 80%.

  • Saturday Night

    Thunderstorms. Low 77F. Winds ESE at 5 to 10 mph. Chance of rain 80%.

  • Sunday

    Thunderstorms likely. High 86F. Winds ESE at 10 to 15 mph. Chance of rain 80%.

  • Sunday Night

    Scattered thunderstorms during the evening becoming more widespread overnight. Low 77F. Winds light and variable. Chance of rain 80%.

  • Monday

    Scattered thunderstorms in the morning becoming more widespread in the afternoon. High 86F. Winds ESE at 10 to 15 mph. Chance of rain 80%.

  • Monday Night

    Thunderstorms likely. Low 77F. Winds light and variable. Chance of rain 80%.

  • Tuesday

    Partly to mostly cloudy skies with scattered thunderstorms mainly in the morning. High 86F. Winds S at 5 to 10 mph. Chance of rain 50%.

  • Tuesday Night

    Scattered showers and thunderstorms. Low 77F. Winds light and variable. Chance of rain 40%.

  • Wednesday

    Scattered clouds with the possibility of an isolated thunderstorm developing during the afternoon. High 86F. Winds light and variable. Chance of rain 30%.

  • Wednesday Night

    Variable clouds with scattered thunderstorms. Low 77F. Winds light and variable. Chance of rain 40%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Maite, Maite, GU

Updated: 2:40 AM ChST

Temperature: 78.6 °F Dew Point: 74 °F Humidity: 87% Wind: ENE at 2.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Western Blvd, Tamuning

Updated: 2:35 AM ChST

Temperature: 81.0 °F Dew Point: 71 °F Humidity: 72% Wind: North at - Pressure: 30.09 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Jose Leon Guerrero Street, Asan

Updated: 2:35 AM ChST

Temperature: 76.8 °F Dew Point: 74 °F Humidity: 91% Wind: North at - Pressure: 29.37 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Ordot Dump, Chalan Pago Ordot

Updated: 2:40 AM ChST

Temperature: 75.4 °F Dew Point: 74 °F Humidity: 95% Wind: ESE at 2.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Perezville, Tamuning, Guam

Updated: 2:40 AM ChST

Temperature: 79.0 °F Dew Point: 74 °F Humidity: 84% Wind: NE at 9.0 mph Pressure: 29.76 in Hourly Precipitation: 0.01 in Heat Index: 83 °F Graphs

Location: Mangilao, Mangilao, GU

Updated: 2:39 AM ChST

Temperature: 78.0 °F Dew Point: 72 °F Humidity: 82% Wind: NE at 1.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

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

Updated: 2:40 AM ChST

Temperature: 81.4 °F Dew Point: 76 °F Humidity: 83% Wind: NE at 15.0 mph Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Ypaopao Estates, Dededo

Updated: 2:38 AM ChST

Temperature: 77.4 °F Dew Point: 68 °F Humidity: 72% Wind: Calm Pressure: 29.44 in Hourly Precipitation: 0.03 in Heat Index: 79 °F Graphs

Location: Paradise Estates, Dededo, Guam, Guam

Updated: 2:40 AM ChST

Temperature: 77.7 °F Dew Point: 57 °F Humidity: 49% Wind: ENE at 6.9 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service tiyan GU 
641 PM chst Sat Apr 18 2015 


Synopsis... 
a weak trade-wind disturbance is over the Mariana islands this 
evening. Widely scattered showers are present over Guam waters. 
Another slightly better organized disturbance is farther east near 
151e. A broad near-equatorial trough stretches across eastern 
micronesia near 6n. 


&& 


Discussion... 
based on the latest radar and visible satellite imagery...showers 
and clouds near Guam are thinning out. Therefore showers should 
stay at widely scattered category and skies will be mainly partly 
cloudy tonight. The disturbance upstream is little more robust and 
will pass south of Tinian...over Rota and Guam Sunday evening 
based on its trajectory. Have increased cloudiness for these two 
islands and raised pop to just below scattered. Otherwise a 
relatively dry trade pattern will continue through Monday night. The 
majority of the model outputs are still gradually lifting the 
near-equatorial trough northwestward starting Tuesday. The 
likelihood for this to happen depends on how a frontal system 
currently over eastern China will interact with the sub-tropical 
ridge north of Wake Island by midweek. Under this scenario... 
convection induced by trade-wind convergence north of the trough 
axis will creep toward the marianas by midweek. Have kept mostly 
cloudy in the Middle-Range forecast but still too early to upgrade 
shower coverage at this point. 


&& 


Marine... 
a steady trend of trade-wind wave and swell heights will maintain 
seas at 5 to 7 feet through Monday. Afterward the potential for 
increasing pressure gradient between the near-equatorial trough 
and the sub-tropical ridge could strengthen trade winds across our 
area. If so...seas will begin to build on Tuesday night and peak 
after midweek. Need to monitor for the possibility of Small Craft 
Advisory conditions. 


&& 


Eastern micronesia... 
ascat wind analysis indicates a very weak circulation is near Kosrae 
at about 5n164e. Also..the combination of low-level convergence and 
an upper-level trough is triggering scattered showers and a few 
thunderstorms in large areas from Majuro to the date line and 
northwest across the northern Marshall Islands to near Wake Island. 


Majuro will remain within this showery weather pattern tonight 
through Sunday at least. Most models indicate the areas of heavier 
showers will eventually move slowly toward the west...but models 
also indicate that a relatively wet trade-wind flow will continue 
for Majuro through the next several days. 


Kosrae will have variable winds and a few showers at times while the 
weak circulation/disturbance remains nearby during the next day or 
two. Winds should gradually become more easterly with just 
isolated showers and thunderstorms for most of the coming week. 


Pohnpei and Chuuk...a fairly dry trade-wind flow will continue for 
Pohnpei through Sunday and for Chuuk through Monday or Tuesday. Most 
models indicate the weak circulation near Kosrae this afternoon will 
move westward...and the showery weather over the northern Marshall 
Islands will also move toward west. The areas of heavier showers are 
expected to remain north of Pohnpei and Chuuk...but conditions could 
become changeable and unstable for Pohnpei and Chuuk during this 
coming week...especially for Pohnpei. 


&& 


Western micronesia... 
Chuuk discussion included above with Pohnpei due to similar weather. 


Yap and Koror... 
only minor changes were made to these forecasts. A relatively dry 
trade-wind flow will continue across Yap and Koror through the next 
several days. Some clouds and showers could arrive from the east 
later in the coming work week. 


&& 


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


$$ 


Chan/Simpson 






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