Pago Pago, American Samoa Weather Conditions

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Current Conditions

  • 78°
  • Clear
  • Wind: SE 4 mph
  • Humidity: 79%
  • Visibility: 10.0 miles
  • Dew Point: 71°
  • Pressure: 29.96 in. -

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Next 12 Hours

2  am
5  am
8  am
11  am
2  pm
Rain Showers
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Clear
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79°
75°
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84°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Rain Showers
  • High: 86 °
  • Low: 77 °
  • Rain Showers
  • Wednesday
  • Rain Showers
  • High: 86 °
  • Low: 75 °
  • Rain Showers
  • Thursday
  • Chance of Rain
  • High: 84 °
  • Low: 75 °
  • Chance of Rain
  • Friday
  • Chance of Rain
  • High: 84 °
  • Low: 75 °
  • Chance of Rain
  • Saturday
  • Chance of Rain
  • High: 84 °
  • Low: 75 °
  • Chance of Rain

Forecast for Pago Pago, American Samoa

Updated: 11:00 PM HST on October 20, 2014

  • Tuesday

    Partly cloudy with rain showers. High of 86F. Winds less than 5 mph. Chance of rain 20%.

  • Tuesday Night

    Mostly cloudy in the evening, then clear. Low of 77F. Winds less than 5 mph.

  • Wednesday

    Clear in the morning, then mostly cloudy with rain showers. High of 86F. Winds less than 5 mph. Chance of rain 30%.

  • Wednesday Night

    Partly cloudy with rain showers in the evening, then clear. Low of 75F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday

    Clear in the morning, then mostly cloudy with a chance of rain. High of 84F. Winds from the East at 5 to 10 mph shifting to the WNW in the afternoon. Chance of rain 20%.

  • Thursday Night

    Partly cloudy in the evening, then clear. Low of 75F. Winds less than 5 mph.

  • Friday

    Clear in the morning, then partly cloudy with a chance of rain. High of 84F. Winds from the NW at 5 to 10 mph. Chance of rain 20%.

  • Friday Night

    Partly cloudy with a chance of rain in the evening, then clear. Low of 75F. Winds from the WNW at 5 to 10 mph. Chance of rain 20%.

  • Saturday

    Partly cloudy with a chance of rain. High of 84F. Winds from the WNW at 5 to 10 mph. Chance of rain 50%.

  • Saturday Night

    Partly cloudy with a chance of rain. Low of 75F. Winds from the NW at 5 to 10 mph. Chance of rain 20%.

  • Sunday

    Partly cloudy with a chance of rain. High of 86F. Winds from the NW at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Partly cloudy with a chance of rain. Low of 75F. Winds from the WNW at 5 to 10 mph. Chance of rain 20%.

  • Monday

    Partly cloudy with a chance of rain. High of 84F. Winds from the WNW at 5 to 10 mph. Chance of rain 20%.

  • Monday Night

    Partly cloudy with a chance of rain. Low of 75F. Winds from the NW at 5 to 10 mph. Chance of rain 20%.

  • Tuesday

    Partly cloudy with a chance of rain. High of 84F. Winds from the WNW at 5 to 10 mph shifting to the North in the afternoon. Chance of rain 20%.

  • Tuesday Night

    Partly cloudy with a chance of a thunderstorm. Low of 73F. Winds less than 5 mph. Chance of rain 20%.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm. High of 84F. Winds less than 5 mph. Chance of rain 20%.

  • Wednesday Night

    Clear. Low of 75F. Winds from the ENE at 5 to 10 mph.

  • Thursday

    Clear. High of 84F. Winds from the ENE at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 75F. Winds from the ENE at 5 to 10 mph.

  • Friday

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

  • Friday Night

    Clear. Low of 75F. Winds from the ENE at 5 to 10 mph.

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NWS Forecaster Discussion




Area forecast discussion 
National Weather Service tiyan GU 
418 PM chst Tuesday Oct 21 2014 


Marianas synopsis... 
a shear line with attendant showers and thunderstorms is situated 
north of the cnmi over the far northern marianas. Showers 
associated with an elongated circulation are occurring south of 
Guam. Otherwise...only a few light island showers are present 
over and to the southwest of the larger islands. 


&& 


Discussion... 
little change in the forecast philosophy. A slightly drier and 
more stable air mass will filter in over the marianas tonight and 
tomorrow which should Limit Island convection tomorrow. Models 
bring the weak circulation south of Guam west over the next 
couple of days and should not affect weather across the marianas. 
However...a surface trough extending to the northeast of the 
circulation may bring increased cloud cover and increased showers 
to the islands Friday and Saturday. European model (ecmwf) is most aggressive in 
this scenario with showers lasting through the weekend. Will wait 
a couple of more model runs for a better consensus between 
models. Opted for the drier GFS and navgem solutions for now. 
Overall...a relatively dry pattern is expected to continue this 
week accompanied by light east winds. 


&& 


Marine... 
north swell generated by a strong North Pacific low pressure 
system will increase tonight and Wednesday across the marianas. 
Adjusted swell grids to include a 4 to 6 feet north-NE swell across the 
region. Latest buoy data from tanapag has not indicated a 
increase in north swell but is expected to commence later 
tonight. The north swell will be the main component the 
calculation of combined seas with winds waves and east swell less 
than 2 feet. 


&& 


Eastern micronesia... 
a weak circulation was located just to the northeast of Kosrae 
this afternoon. Low-level convergence associated with the 
circulation generated scattered showers and isolated 
thunderstorms not too far from Kosrae this afternoon. Models 
predict the circulation will drift around the area near Kosrae 
then move south before washing out late Wednesday. Expect mostly 
cloudy skies and a slight chance of thunderstorms tonight at 
Kosrae. As the circulation weakens...skies will be partly cloudy 
at Kosrae Wednesday through Thursday night. 


A ridge over Pohnpei state will keep winds light and variable 
over Pohnpei tonight and Wednesday. As the circulation decays so 
will the ridge. Expect partly cloudy skies and isolated showers 
at Pohnpei tonight and Wednesday. A weak surface trough will 
develop near Pohnpei and Kosrae by Wednesday night.This will 
allow north winds to develop across Pohnpei Wednesday night. 


Low-level convergence will bring mostly cloudy skies and a slight 
chance of thunderstorms to Majuro tonight. A weak ridge of high 
pressure will build across the Marshalls briefly decreasing the 
chance of showers Wednesday and Wednesday night. A surface trough 
will cross the dateline and bring an increased chance of showers 
Thursday and Thursday night. Low-level convergence in the wake of 
the trough will keep skies mostly cloudy and generate a slight 
chance of thunderstorms through Saturday. Drier weather is 
expected Sunday. 


The Majuro surface trough will move west and combine with the other 
trough near Kosrae to prolong clouds and showers across Pohnpei 
through Friday. Low-level convergence will keep skies mostly cloudy 
through the weekend at Pohnpei and Kosrae. 


&& 


Western micronesia... 
a surface trough stretched across the western half of micronesia 
from just south of Guam westward just north of 10n. Northwest winds 
will prevail at Palau and north winds at Yap tonight through 
Wednesday night. 


A weak circulation will form along the trough south of Guam. This 
circulation will move west allowing east trade-winds to return 
behind it. East winds will return to Yap Thursday and to Palau 
Friday night. The circulation will remain weak and expect only a 
few clouds at Palau Thursday and Thursday night as convergence 
ahead of the circulation will move across that area. 


Southwest winds are expected tonight through Wednesday night at 
Chuuk. Northeast trade-winds will return there Thursday night. Deep 
layer moisture will remain limited so expect only a few periods of 
mostly cloudy skies at Thursday through Sunday. 


&& 


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


$$ 


Williams/ziobro 



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