Pago Pago, American Samoa 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

  • 80°
  • Clear
  • Wind: WNW 9 mph
  • Humidity: 67%
  • Visibility: 10.0 miles
  • Dew Point: 68°
  • Pressure: 29.94 in. -
  • Heat Index: 83

Select a Section

Click a section below for more information.

Next 12 Hours

2  pm
5  pm
8  pm
11  pm
2  am
Rain Showers
Rain Showers
Rain Showers
Rain Showers
Rain Showers
Rain Showers
Rain Showers
Rain Showers
Mostly Cloudy
Mostly Cloudy
81°
81°
79°
75°
75°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Rain Showers
  • High: 84 °
  • Low: 72 °
  • Rain Showers
  • Saturday
  • Rain Showers
  • High: 84 °
  • Low: 72 °
  • Rain Showers
  • Sunday
  • Rain Showers
  • High: 86 °
  • Low: 72 °
  • Rain Showers
  • Monday
  • Partly Cloudy
  • High: 84 °
  • Low: 72 °
  • Partly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 84 °
  • Low: 72 °
  • Partly Cloudy

Forecast for Pago Pago, American Samoa

Updated: 11:00 PM HST on February 26, 2015

  • Friday

    Partly cloudy with rain showers in the afternoon. High of 84F. Winds from the SSW at 10 to 15 mph shifting to the West in the afternoon. Chance of rain 40%.

  • Friday Night

    Mostly cloudy with rain showers in the evening, then overcast. Low of 72F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday

    Overcast with rain showers in the afternoon. High of 84F. Winds less than 5 mph. Chance of rain 50%.

  • Saturday Night

    Overcast with rain showers. Low of 72F. Winds less than 5 mph. Chance of rain 40%.

  • Sunday

    Partly cloudy with rain showers in the morning, then overcast with rain showers. High of 86F. Winds from the NNW at 5 to 10 mph. Chance of rain 40%.

  • Sunday Night

    Overcast. Low of 72F. Winds from the NE at 5 to 10 mph.

  • Monday

    Mostly cloudy in the morning, then clear. High of 84F. Winds from the North at 5 to 10 mph.

  • Monday Night

    Partly cloudy in the evening, then overcast. Low of 72F. Winds from the North at 5 to 10 mph.

  • Tuesday

    Partly cloudy. High of 84F. Winds from the NW at 5 to 10 mph.

  • Tuesday Night

    Clear. Low of 72F. Winds less than 5 mph.

  • Wednesday

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

  • Wednesday Night

    Clear. Low of 70F. Winds from the NNE at 5 to 10 mph.

  • Thursday

    Clear. High of 82F. Winds from the NNE at 10 to 15 mph.

  • Thursday Night

    Clear. Low of 70F. Winds from the NE at 5 to 10 mph.

  • Friday

    Clear. High of 79F. Winds from the NNE at 10 to 15 mph.

  • Friday Night

    Clear. Low of 68F. Winds from the NE at 5 to 15 mph.

  • Saturday

    Clear. High of 77F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 68F. Winds from the NE at 5 to 10 mph.

  • Sunday

    Clear. High of 79F. Winds from the NE at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 68F. Winds from the ENE at 5 to 10 mph.

  • Monday

    Clear. High of 81F. Winds from the ENE at 5 to 10 mph.

  • Monday Night

    Clear. Low of 68F. Winds from the ENE at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

There are no weather stations in your area, find out more information!

NWS Forecaster Discussion




Area forecast discussion...resent 
National Weather Service tiyan GU 
749 am chst Sat Feb 28 2015 


Synopsis...northeast winds and a few small showers prevail 
across the marianas this morning. Relatively dry weather is 
expected through the weekend and into Monday. 


&& 


Discussion... 
little change made to the forecast. 2 kft winds on the VAD were 
20 knots and scatterometer data showed northeast winds between 15 
to 20 kts. These wind speeds are consistent with current model 
predictions. Winds of 15 to 20 miles per hour today will decrease to 10 to 15 
miles per hour tonight. The lighter winds will persist through Monday before 
an area of high pressure builds out into the northwest Pacific and 
elevates wind speeds. 


Radar imagery this morning showed only a few showers moving across 
the local area. Satellite precipitable water index showed a slightly 
higher value over the marianas compared to previous days. This 
may lead to a slightly increased chance of showers today...but 
still believe that a slight chance of showers mentioned in today's 
forecast should suffice. Model predictions keep deep layer 
moisture lacking through the forecast. GFS...European model (ecmwf) and navgem 
portray a weak trough moving across the marianas Monday through 
Tuesday. While these features may produce a few more clouds still 
only expect isolated showers to prevail because of the lack of 
deep moisture. 


&& 


Marine... 
observations this morning from the ritidian and ipan buoy indicated 
seas at around 6 to 7 feet. A east and northeast swell are present 
across the marianas this morning. The northeast swell will be 
replaced by a north swell Monday. These swells will not become 
large so only expect a moderate risk of rip currents on north and 
east facing reefs through the forecast. 


&& 


Fire weather... 
Fire Weather Watch is still out until Sunday afternoon. Winds may 
be high enough and relative humidity low enough this afternoon to 
produce conditions favorable for another red flag warning. Winds 
may decrease enough Sunday so that a red flag warning may not 
necessary. 


&& 


Eastern micronesia... 
a fresh trade-wind surge is progressing across micronesia this 
morning. Its leading edge...in the form of a trade disturbance is 
passing over Chuuk. Sporadic deep convection associated with this 
system will persist there through this evening. A trade convergent zone 
related to the surge can be seen between 3n and 6n...meandering 
eastward from the disturbance across the date line to near 165w. 
Showers and possible thunderstorms near this zone will train across 
Kosrae through Sunday afternoon. Being just north of the northern 
extent of the zone...shower coverage over Pohnpei should stay at 
isolated through this evening but cannot rule out a thunderstorm or 
two. Besides being north of the convergent zone...latest sounding 
from Majuro also reveals much drier air above 500mb. This will lower 
the chance of thunderstorms but a weak disturbance embedded along 
the zone could still squeeze out a few showers there through Sunday. 


The large sub-tropical high currently north of Wake Island near 
35n170e will slowly drift eastward across the date line over the 
next couple of days. This should allow trade winds to ease across 
the region. Nevertheless residual trade convergence is going to 
maintain isolated thunderstorms near Chuuk...Pohnpei and Kosrae 
until Monday night. As trade winds decrease further toward 
midweek...a drier trade regime would spread westward from Majuro 
into the rest of the locales. 


Latest readings from both altimetry and computer models guidance 
support a further decrease on the north-northeast swell near Chuuk 
and Pohnpei. This has allowed surf heights to drop below advisory 
levels this morning. On another hand...latest ascat satellite 
imagery indicates the trade-wind surge is becoming more robust with 
20 to 25-knot winds between 6n and 15n from 153e to the date line. 
East-northeast wind waves and swell generated by this surge will 
cause surf to rise across Chuuk...Pohnpei...Kosrae states and the 
Marshall Islands today and tonight. With a lower threshold of 8 
feet...surf is expected to reach hazardous levels on Kosrae by noon. 
Surf heights on Chuuk...Pohnpei and Majuro should stay below 
hazardous levels of 12 feet but higher rip current risk will be 
likely. There is also a chance for seas to rise back to hazardous 
levels for small craft operation across the region later this 
afternoon or evening. Day shift will need to monitor satellite 
altimetry closely today. 


&& 


Western micronesia... 
the Chuuk forecast discussion is included with eastern micronesia 
above due to a similar synoptic weather pattern as Pohnpei and 
Kosrae. 


A near-equatorial trough is anticipated to remain near 3n south of 
both Koror and Yap for the next couple of days. Therefore drier 
moderate trades will provide fair weather over these places through 
Sunday night. A developing frontal system is still forecasted to 
track east-northeastward from southern China into southern Japan by 
Monday or Tuesday. This might provoke the near-equatorial trough to 
lift northward closer to Koror and Yap. Even so...most of the shower 
activity related to the trough should stay near Koror and south of 
Yap during the first half of next week. 


&& 


Gum watches/warnings/advisories... 
GU...Fire Weather Watch through Sunday afternoon for guz001. 


Marianas waters...none. 
&& 


$$ 


Ziobro/chan 






National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.