Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Andersen, Mariana Is, Andersen Air Force Base (PGUA)

Lat: 13.58°NLon: 144.93°EElev: 614ft.

Mostly Cloudy

80°F

27°C

Humidity 87%
Wind Speed NE 8 mph
Barometer 29.73 in (1005.8 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 20 Jan 7:55 am ChST
Extended Forecast for

Andersen AFB GU

  • Today

    Today: Isolated showers.  Mostly sunny, with a high near 86. East wind around 9 mph.

    High: 86 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers.  Partly cloudy, with a low around 76. East northeast wind around 8 mph.

    Low: 76 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms.  Mostly cloudy, with a high near 88. East wind 7 to 10 mph.  Chance of precipitation is 40%.

    High: 88 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 76. East wind around 8 mph.  Chance of precipitation is 50%.

    Low: 76 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers and thunderstorms.  Mostly cloudy, with a high near 88. East southeast wind 7 to 10 mph.  Chance of precipitation is 50%.

    High: 88 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers.  Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers.  Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers.  Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

Detailed Forecast

Today
Isolated showers. Mostly sunny, with a high near 86. East wind around 9 mph.
Tonight
Isolated showers. Partly cloudy, with a low around 76. East northeast wind around 8 mph.
Wednesday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 88. East wind 7 to 10 mph. Chance of precipitation is 40%.
Wednesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. East wind around 8 mph. Chance of precipitation is 50%.
Thursday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 88. East southeast wind 7 to 10 mph. Chance of precipitation is 50%.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 76.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 86.
Friday Night
A chance of showers. Mostly cloudy, with a low around 76.
Saturday
A chance of showers. Partly sunny, with a high near 86.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 76.
Sunday
A chance of showers. Partly sunny, with a high near 88.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 76.
Monday
A chance of showers. Partly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Andersen AFB GU
 13.59°N 144.93°E
6:06 am ChST Jan 20, 2026
8am ChST Jan 20, 2026-6pm ChST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database