Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Mostly Cloudy

81°F

27°C

Humidity 77%
Wind Speed N 17 G 25 mph
Barometer 29.69 in (1004.6 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 12 Apr 6:54 pm ChST
Extended Forecast for

Agana Heights GU

Typhoon Watch until further notice
Tropical Storm Warning until further notice
Flood Watch until April 15, 10:00am
Coastal Flood Watch April 13, 06:00am until April 15, 04:00pm
High Surf Warning April 12, 07:26pm until April 16, 06:00pm
Click here for hazard details and duration
Typhoon Watch until further notice
Tropical Storm Warning until further notice
Flood Watch
Coastal Flood Watch
High Surf Warning
  •  
    Typhoon Watch until further notice
    Tropical Storm Warning until further notice
    Flood Watch until April 15, 10:00am
    High Surf Warning April 12, 07:26pm until April 16, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 78 °F

    Scattered
    Showers and
    Windy

  • Monday

    Monday: Scattered showers and thunderstorms.  Mostly cloudy, with a high near 84. Windy, with a north wind 30 to 40 mph, with gusts as high as 55 mph.  Chance of precipitation is 50%.

    High: 84 °F

    Scattered
    Showers and
    Windy

  • Monday Night

    Monday Night: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 79. Windy, with a north northwest wind 37 to 45 mph, with gusts as high as 60 mph.  Chance of precipitation is 50%.

    Low: 79 °F

    Scattered
    Showers and
    Windy

  • Tuesday

    Tuesday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Some of the storms could produce heavy rainfall.  Cloudy, with a high near 83. Windy, with a west northwest wind 46 to 55 mph, with gusts as high as 70 mph.  Chance of precipitation is 70%.

    High: 83 °F

    Heavy Rain
    and Windy

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then scattered showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall.  Cloudy, with a low around 79. Windy, with a west southwest wind 46 to 55 mph, with gusts as high as 70 mph.  Chance of precipitation is 70%.

    Low: 79 °F

    Heavy Rain
    and Windy

  • Wednesday

    Wednesday: Scattered showers and thunderstorms.  Mostly cloudy, with a high near 84. Windy.  Chance of precipitation is 50%.

    High: 84 °F

    Scattered
    Showers and
    Windy

  • Wednesday Night

    Wednesday Night: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 79. Windy.  Chance of precipitation is 50%.

    Low: 79 °F

    Scattered
    Showers and
    Windy

  • Thursday

    Thursday: Scattered showers and thunderstorms before 11am.  Partly sunny, with a high near 85. Windy.

    High: 85 °F

    Scattered
    Showers and
    Windy then
    Partly Sunny
    and Breezy

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. Windy, with a north northeast wind 28 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 50%.
Monday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 84. Windy, with a north wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 50%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. Windy, with a north northwest wind 37 to 45 mph, with gusts as high as 60 mph. Chance of precipitation is 50%.
Tuesday
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Some of the storms could produce heavy rainfall. Cloudy, with a high near 83. Windy, with a west northwest wind 46 to 55 mph, with gusts as high as 70 mph. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then scattered showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Cloudy, with a low around 79. Windy, with a west southwest wind 46 to 55 mph, with gusts as high as 70 mph. Chance of precipitation is 70%.
Wednesday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 84. Windy. Chance of precipitation is 50%.
Wednesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. Windy. Chance of precipitation is 50%.
Thursday
Scattered showers and thunderstorms before 11am. Partly sunny, with a high near 85. Windy.
Thursday Night
Partly cloudy, with a low around 77. Breezy.
Friday
Mostly sunny, with a high near 86.
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 78.
Sunday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Agana Heights GU
 13.47°N 144.74°E
6:08 pm ChST Apr 12, 2026
7pm ChST Apr 12, 2026-6pm ChST Apr 19, 2026
 
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