Agana Heights, Guam Weather Conditions

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Current Conditions

  • 81°
  • Partly Cloudy
  • Wind: SE 8 mph
  • Humidity: 88%
  • Visibility: 10.0 miles
  • Dew Point: 77°
  • Pressure: 29.78 in. 0
  • Heat Index: 88

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Next 12 Hours

4  am
7  am
10  am
1  pm
4  pm
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Rain Showers
Rain Showers
77°
79°
86°
88°
86°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Chance of a Thunderstorm
  • High: 91 °
  • Low: 77 °
  • Chance of a Thunderstorm
  • Monday
  • Rain Showers
  • High: 90 °
  • Low: 77 °
  • Rain Showers
  • Tuesday
  • Clear
  • High: 90 °
  • Low: 79 °
  • Clear
  • Wednesday
  • Partly Cloudy
  • High: 90 °
  • Low: 79 °
  • Partly Cloudy
  • Thursday
  • Chance of a Thunderstorm
  • High: 91 °
  • Low: 79 °
  • Chance of a Thunderstorm

Forecast for Agana Heights, Guam

Updated: 1:00 AM ChST on April 20, 2014

  • Sunday

    Partly cloudy with a chance of a thunderstorm and rain showers. High of 91F with a heat index of 97F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.

  • Sunday Night

    Partly cloudy with rain showers. Low of 77F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.

  • Monday

    Partly cloudy with rain showers. High of 90F with a heat index of 99F. Winds from the ESE at 10 to 15 mph. Chance of rain 20%.

  • Monday Night

    Partly cloudy with rain showers. Low of 77F. Winds from the SE at 10 to 15 mph. Chance of rain 20%.

  • Tuesday

    Partly cloudy with rain showers. High of 90F with a heat index of 99F. Breezy. Winds from the West at 15 to 20 mph shifting to the ENE in the afternoon.

  • Tuesday Night

    Clear with a chance of a thunderstorm and rain in the evening, then partly cloudy with a chance of a thunderstorm and rain. Low of 79F. Breezy. Winds from the ENE at 15 to 20 mph. Chance of rain 40%.

  • Wednesday

    Partly cloudy. High of 90F with a heat index of 97F. Breezy. Winds from the ENE at 15 to 20 mph.

  • Wednesday Night

    Partly cloudy in the evening, then overcast with a chance of a thunderstorm and rain. Low of 79F. Breezy. Winds from the ENE at 15 to 20 mph. Chance of rain 40%.

  • Thursday

    Overcast with a chance of a thunderstorm and rain in the morning, then mostly cloudy. High of 91F with a heat index of 97F. Breezy. Winds from the ENE at 15 to 20 mph. Chance of rain 20%.

  • Thursday Night

    Mostly cloudy. Low of 79F. Breezy. Winds from the NE at 15 to 20 mph.

  • Friday

    Overcast with a chance of a thunderstorm. High of 90F with a heat index of 102F. Breezy. Winds from the NE at 20 to 25 mph. Chance of rain 50%.

  • Friday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 79F. Breezy. Winds from the NE at 20 to 25 mph. Chance of rain 50%.

  • Saturday

    Overcast with a chance of a thunderstorm. High of 90F with a heat index of 99F. Windy. Winds from the NE at 25 to 30 mph. Chance of rain 50%.

  • Saturday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 79F. Windy. Winds from the ENE at 30 to 35 mph. Chance of rain 40%.

  • Sunday

    Mostly cloudy with a chance of a thunderstorm. High of 91F. Breezy. Winds from the East at 10 to 30 mph. Chance of rain 40%.

  • Sunday Night

    Partly cloudy with a chance of a thunderstorm. Low of 79F. Winds from the East at 10 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.

  • Monday

    Mostly cloudy. High of 91F. Winds from the East at 10 to 15 mph.

  • Monday Night

    Partly cloudy with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 5 to 15 mph. Chance of rain 40%.

  • Tuesday

    Partly cloudy with a chance of a thunderstorm. High of 91F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Partly cloudy with a chance of a thunderstorm. Low of 79F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Wednesday

    Clear with a chance of a thunderstorm. High of 91F. Winds from the ESE at 5 to 10 mph. Chance of rain 20%.

  • Wednesday Night

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

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Maite, Maite, GU

Updated: 3:00 AM ChST

Temperature: 81.2 °F Dew Point: 77 °F Humidity: 88% Wind: SSW at 4.0 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Ordot Dump, Guam

Updated: 3:00 AM ChST

Temperature: 80.1 °F Dew Point: 78 °F Humidity: 92% Wind: SE at 2.9 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Perezville, Tamuning, Guam

Updated: 3:00 AM ChST

Temperature: 81.6 °F Dew Point: 77 °F Humidity: 86% Wind: East at 6.0 mph Pressure: 29.66 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Mangilao, Mangilao, GU

Updated: 3:00 AM ChST

Temperature: 80.5 °F Dew Point: 73 °F Humidity: 77% Wind: ESE at 3.0 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

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

Updated: 3:00 AM ChST

Temperature: 82.7 °F Dew Point: 78 °F Humidity: 87% Wind: ESE at 7.0 mph Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service tiyan GU 
428 PM chst Sat Apr 19 2014 


Marianas synopsis... 
radar reveals isolated showers within the marianas marine zones 
with thunderstorms building just west of the Guam marine zone. 
Satellite imagery shows a circulation center at about 11n142e 
southwest of Guam with convection being sheared mainly southwest 
of the low-level circulation center. The convection now covers Yap 
and Koror. 


&& 


Discussion... 
little change to the prior forecast. The marianas marine zones are 
located east of a surface trough that runs from the circulation 
center at 11n142e to about 23n150e. The models indicate scattered 
showers associated with this circulation and trough but satellite 
and radar indicate only isolated coverage. The marianas are 
expected to be in this pattern into Sunday as the circulation and 
trough move westward. Another circulation is expected to pass to 
the south of the marianas Thursday or Friday. 


&& 


Marine... 
an east trade-wind swell will prevail over the region through 
Monday. These swells will be large enough to generate a moderate 
rip current risk on east facing reefs the next few days. 


&& 


Eastern micronesia... 
near-equatorial trough passes to the south of both Kosrae and 
Pohnpei. Convection has begun to concentrate in the vicinity of the 
near-equatorial trough near Kosrae. A surface trough and attendant 
convection has crossed the date line and is approaching Majuro. 
Forecast for Majuro follows persistence. Near-equatorial trough is 
not a player in the forecast. Inherited forecast already brings in 
scattered showers Sunday night in conjunction with the arrival of 
the surface trough from the east. For Kosrae...added scattered 
showers tonight based on convection developing overhead. Models 
suggest convection near Kosrae could persist beyond tonight...but 
held off on extending duration of scattered showers based on small 
areal coverage of the convection currently developing near Kosrae. 
For Pohnpei...added slight chance of thunder through the forecast 
period as trade-wind convergence zone will be close enough to 
maintain unsettled weather there through day 5. 


&& 


Western micronesia... 
the near-equatorial trough heads eastward from 10n130e to pass just 
north of Koror and just south of Yap...then turns southeastward to 
pass south of Chuuk near 5n. 98w has been showing an exposed 
low-level circulation center. Significant weather maker connected 
with 98w is the monsoon tail. Tail has grown during the course of 
the day shift and has enveloped both Yap and Koror. Accordingly... 
have beefed up probability of precipitation and winds for both the Yap and Koror forecasts 
for the next couple of days. Models are not handling the monsoon 
tail well. Will assume 98w continues heading westward. Future shifts 
may need to beef up the forecasts for Yap and Koror even more if 
monsoon tail continues to develop. Wind forecast for Koror assumes 
near-equatorial trough will be pushed to the south of the island 
tonight. Forecast for Chuuk maintains the relatively dry trade-wind 
pattern through Monday night. Inherited forecast already brings in 
weather from the east on Tuesday via mostly cloudy/slight chance 
thunder wording. Models develop a circulation in the near-equatorial 
trough east of Chuuk by Tuesday...but differ in the evolution and 
timing of the system. Will hold off on adding scattered showers to 
the Chuuk forecast until the picture for days 3 through 5 comes into 
clearer focus. 


&& 


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


$$ 


Devita/McElroy 



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