National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Widespread Summer Heat; Enhanced Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, an enhanced risk of organized severe thunderstorms is possible from Iowa to Illinois and Indiana. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Fair

77°F

25°C

Humidity 88%
Wind Speed Calm
Barometer 29.86 in (1010.2 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 20 Aug 11:54 pm ChST
Extended Forecast for

Hagatna GU

  • Overnight

    Overnight: Mostly cloudy, with a low around 77. South southwest wind around 6 mph.

    Mostly Cloudy

    Low: 77 °F

  • Wednesday

    Wednesday: Scattered showers and thunderstorms after 11am. Mostly cloudy, with a high near 87. South southwest wind 3 to 5 mph. Chance of precipitation is 30%.

    Scattered
    Showers

    High: 87 °F

  • Wednesday
    Night

    Wednesday Night: Isolated showers. Partly cloudy, with a low around 78. Light and variable wind becoming northwest around 6 mph after midnight.

    Isolated
    Showers

    Low: 78 °F

  • Thursday

    Thursday: Isolated showers. Mostly sunny, with a high near 89. Heat index values as high as 99. Northwest wind 6 to 8 mph becoming northeast in the afternoon.

    Isolated
    Showers

    High: 89 °F

  • Thursday
    Night

    Thursday Night: Isolated showers. Partly cloudy, with a low around 79. Northeast wind 5 to 9 mph.

    Isolated
    Showers

    Low: 79 °F

  • Friday

    Friday: Isolated showers. Mostly sunny, with a high near 89.

    Isolated
    Showers

    High: 89 °F

  • Friday
    Night

    Friday Night: Mostly cloudy, with a low around 78.

    Mostly Cloudy

    Low: 78 °F

  • Saturday

    Saturday: Partly sunny, with a high near 88.

    Partly Sunny

    High: 88 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 78.

    Mostly Cloudy

    Low: 78 °F

Detailed Forecast

Overnight
Mostly cloudy, with a low around 77. South southwest wind around 6 mph.
Wednesday
Scattered showers and thunderstorms after 11am. Mostly cloudy, with a high near 87. South southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Wednesday Night
Isolated showers. Partly cloudy, with a low around 78. Light and variable wind becoming northwest around 6 mph after midnight.
Thursday
Isolated showers. Mostly sunny, with a high near 89. Heat index values as high as 99. Northwest wind 6 to 8 mph becoming northeast in the afternoon.
Thursday Night
Isolated showers. Partly cloudy, with a low around 79. Northeast wind 5 to 9 mph.
Friday
Isolated showers. Mostly sunny, with a high near 89.
Friday Night
Mostly cloudy, with a low around 78.
Saturday
Partly sunny, with a high near 88.
Saturday Night
Mostly cloudy, with a low around 78.
Sunday
Mostly cloudy, with a high near 87.
Sunday Night
Mostly cloudy, with a low around 78.
Monday
Mostly cloudy, with a high near 87.
Monday Night
Mostly cloudy, with a low around 78.
Tuesday
Isolated showers. Mostly sunny, with a high near 88.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Hagatna GU
 13.47°N 144.76°E (Elev. 23 ft)
Last Update:
4:50 pm ChST Aug 20, 2019
Forecast Valid:
12am ChST Aug 21, 2019-6pm ChST Aug 26, 2019
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation