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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Light Rain and Breezy

81°F

27°C

Humidity 85%
Wind Speed N 23 G 39 mph
Barometer 29.49 in (997.7 mb)
Dewpoint 76°F (24°C)
Visibility 7.00 mi
Heat Index87°F (31°C)
Last update 13 Apr 6:54 pm ChST
Extended Forecast for

Santa Rosa GU

Typhoon Watch until further notice
Tropical Storm Warning until further notice
Flood Watch April 13, 07:04pm until April 15, 10:00am
Flood Advisory until April 13, 10:00pm
High Surf Warning April 13, 07:04pm until April 16, 06:00pm
Coastal Flood Warning until April 16, 05:00am
Click here for hazard details and duration
Typhoon Watch until further notice
Tropical Storm Warning until further notice
Flood Watch
...
High Surf Warning
Coastal Flood Warning
  •  
    Typhoon Watch until further notice
    Tropical Storm Warning until further notice
    Flood Watch April 13, 07:04pm until April 15, 10:00am
    Flood Advisory until April 13, 10:00pm
    High Surf Warning April 13, 07:04pm until April 16, 06:00pm
    Coastal Flood Warning until April 16, 05:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 79 °F

    Scattered
    Showers and
    Windy

  • Tuesday

    Tuesday: Scattered showers and thunderstorms. Cloudy, with a high near 83. Windy, with a west northwest wind 38 to 43 mph, with gusts as high as 55 mph. Chance of precipitation is 50%.

    High: 83 °F

    Scattered
    Showers and
    Windy

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 9pm, then scattered showers and thunderstorms after 9pm. Some of the storms could produce heavy rainfall. Cloudy, with a low around 79. Windy, with a west wind 38 to 43 mph, with gusts as high as 55 mph. Chance of precipitation is 70%.

    Low: 79 °F

    Heavy Rain
    and Windy

  • Wednesday

    Wednesday: Scattered showers and thunderstorms. Cloudy, with a high near 84. Windy, with a west southwest wind 32 to 37 mph, with gusts as high as 48 mph. Chance of precipitation is 40%.

    High: 84 °F

    Scattered
    Showers and
    Windy

  • Wednesday Night

    Wednesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. Windy, with a southwest wind 23 to 31 mph, with gusts as high as 41 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Scattered
    Showers and
    Windy

  • Thursday

    Thursday: Scattered showers and thunderstorms before noon. Partly sunny, with a high near 85. Windy. Chance of precipitation is 30%.

    High: 85 °F

    Scattered
    Showers and
    Windy then
    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 78. Breezy.

    Low: 78 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 86. Breezy.

    High: 86 °F

    Partly Sunny
    and Breezy
    then Partly
    Sunny

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Cloudy, with a low around 79. Windy, with a north northwest wind 34 to 37 mph, with gusts as high as 48 mph. Chance of precipitation is 50%.
Tuesday
Scattered showers and thunderstorms. Cloudy, with a high near 83. Windy, with a west northwest wind 38 to 43 mph, with gusts as high as 55 mph. Chance of precipitation is 50%.
Tuesday Night
Scattered showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 9pm, then scattered showers and thunderstorms after 9pm. Some of the storms could produce heavy rainfall. Cloudy, with a low around 79. Windy, with a west wind 38 to 43 mph, with gusts as high as 55 mph. Chance of precipitation is 70%.
Wednesday
Scattered showers and thunderstorms. Cloudy, with a high near 84. Windy, with a west southwest wind 32 to 37 mph, with gusts as high as 48 mph. Chance of precipitation is 40%.
Wednesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. Windy, with a southwest wind 23 to 31 mph, with gusts as high as 41 mph. Chance of precipitation is 30%.
Thursday
Scattered showers and thunderstorms before noon. Partly sunny, with a high near 85. Windy. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 78. Breezy.
Friday
Partly sunny, with a high near 86. Breezy.
Friday Night
Partly cloudy, with a low around 78.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 79.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 77.
Monday
Mostly sunny, with a high near 85.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
6:08 pm ChST Apr 13, 2026
Forecast Valid:
7pm ChST Apr 13, 2026-6pm ChST Apr 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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