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

Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley Thursday afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Light Rain Fog/Mist

79°F

26°C

Humidity 90%
Wind Speed NE 12 mph
Barometer 29.80 in (1008.3 mb)
Dewpoint 76°F (24°C)
Visibility 5.00 mi
Heat Index83°F (28°C)
Last update 10 Apr 1:54 am ChST
Extended Forecast for

Dededo GU

  • Overnight

    Overnight: Isolated showers. Partly cloudy, with a low around 76. Northeast wind around 17 mph, with gusts as high as 23 mph.

    Low: 76 °F

    Isolated
    Showers

  • Friday

    Friday: Isolated showers. Mostly sunny, with a high near 87. Breezy, with a northeast wind 17 to 22 mph, with gusts as high as 29 mph.

    High: 87 °F

    Isolated
    Showers and
    Breezy

  • Friday Night

    Friday Night: Isolated showers. Partly cloudy, with a low around 76. North northeast wind 17 to 20 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Isolated
    Showers

  • Saturday

    Saturday: Isolated showers. Mostly sunny, with a high near 87. Breezy, with a north northeast wind 17 to 23 mph, with gusts as high as 30 mph.

    High: 87 °F

    Isolated
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. North northeast wind 16 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

  • Sunday

    Sunday: Showers likely. Cloudy, with a high near 86. Breezy. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Scattered showers and thunderstorms. Cloudy, with a low around 78. Windy. Chance of precipitation is 50%.

    Low: 78 °F

    Scattered
    Showers and
    Windy

  • Monday

    Monday: Scattered showers and thunderstorms. Cloudy, with a high near 86. Windy.

    High: 86 °F

    Scattered
    Showers and
    Windy

  • Monday Night

    Monday Night: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 10pm. Some of the storms could produce heavy rainfall. Cloudy, with a low around 79. Windy.

    Low: 79 °F

    Heavy Rain
    and Windy

Detailed Forecast

Overnight
Isolated showers. Partly cloudy, with a low around 76. Northeast wind around 17 mph, with gusts as high as 23 mph.
Friday
Isolated showers. Mostly sunny, with a high near 87. Breezy, with a northeast wind 17 to 22 mph, with gusts as high as 29 mph.
Friday Night
Isolated showers. Partly cloudy, with a low around 76. North northeast wind 17 to 20 mph, with gusts as high as 25 mph.
Saturday
Isolated showers. Mostly sunny, with a high near 87. Breezy, with a north northeast wind 17 to 23 mph, with gusts as high as 30 mph.
Saturday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 76. North northeast wind 16 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Sunday
Showers likely. Cloudy, with a high near 86. Breezy. Chance of precipitation is 60%.
Sunday Night
Scattered showers and thunderstorms. Cloudy, with a low around 78. Windy. Chance of precipitation is 50%.
Monday
Scattered showers and thunderstorms. Cloudy, with a high near 86. Windy.
Monday Night
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 10pm. Some of the storms could produce heavy rainfall. Cloudy, with a low around 79. Windy.
Tuesday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Cloudy, with a high near 85. Windy.
Tuesday Night
Showers and thunderstorms. Mostly cloudy, with a low around 76.
Wednesday
A chance of showers. Mostly cloudy, with a high near 87.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 76.
Thursday
A chance of showers. Partly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dededo GU
 13.52°N 144.83°E
Last Update:
6:07 pm ChST Apr 9, 2026
Forecast Valid:
2am ChST Apr 10, 2026-6pm ChST Apr 16, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation