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.

Partly Cloudy

87°F

31°C

Humidity 63%
Wind Speed NE 20 G 26 mph
Barometer 29.72 in (1005.5 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 11 Apr 2:54 pm ChST
Extended Forecast for

Tamuning GU

Typhoon Watch until further notice
Flood Watch April 12, 06:00pm until April 15, 10:00am
High Surf Advisory April 11, 03:42pm until April 16, 06:00pm
Click here for hazard details and duration
Typhoon Watch until further notice
Flood Watch
High Surf Advisory
  •  
    Typhoon Watch until further notice
    High Surf Advisory April 11, 03:42pm until April 16, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 76 °F

    Isolated
    Showers

  • Sunday

    Sunday: Isolated showers.  Partly sunny, with a high near 86. Breezy, with a north northeast wind 20 to 25 mph, with gusts as high as 32 mph.

    High: 86 °F

    Isolated
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Isolated showers.  Mostly cloudy, with a low around 78. Breezy, with a north northeast wind 24 to 26 mph, with gusts as high as 34 mph.

    Low: 78 °F

    Isolated
    Showers and
    Breezy

  • Monday

    Monday: Scattered showers and thunderstorms.  Mostly cloudy, with a high near 85. Windy, with a north northeast wind 29 to 34 mph increasing to 38 to 43 mph in the morning. Winds could gust as high as 55 mph.  Chance of precipitation is 40%.

    High: 85 °F

    Scattered
    Showers and
    Windy

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 2am, then showers and possibly a thunderstorm between 2am and 4am, then rain and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall.  Low around 79. Windy, with a north northeast wind 41 to 51 mph increasing to 80 to 90 mph. Winds could gust as high as 115 mph.  Chance of precipitation is 90%.

    Low: 79 °F

    Heavy Rain
    and Windy

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  High near 84. Windy.  Chance of precipitation is 90%.

    High: 84 °F

    Heavy Rain
    and Windy

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm, mainly before 1am, then scattered showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall.  Low around 79. Windy.  Chance of precipitation is 90%.

    Low: 79 °F

    Heavy Rain
    and Windy

  • Wednesday

    Wednesday: Scattered showers and thunderstorms.  Mostly cloudy, with a high near 85. Windy.

    High: 85 °F

    Scattered
    Showers and
    Windy

Detailed Forecast

Tonight
Isolated showers. Partly cloudy, with a low around 76. Northeast wind 17 to 21 mph, with gusts as high as 25 mph.
Sunday
Isolated showers. Partly sunny, with a high near 86. Breezy, with a north northeast wind 20 to 25 mph, with gusts as high as 32 mph.
Sunday Night
Isolated showers. Mostly cloudy, with a low around 78. Breezy, with a north northeast wind 24 to 26 mph, with gusts as high as 34 mph.
Monday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 85. Windy, with a north northeast wind 29 to 34 mph increasing to 38 to 43 mph in the morning. Winds could gust as high as 55 mph. Chance of precipitation is 40%.
Monday Night
Showers and thunderstorms likely before 2am, then showers and possibly a thunderstorm between 2am and 4am, then rain and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Low around 79. Windy, with a north northeast wind 41 to 51 mph increasing to 80 to 90 mph. Winds could gust as high as 115 mph. Chance of precipitation is 90%.
Tuesday
Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 84. Windy. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm, mainly before 1am, then scattered showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Low around 79. Windy. Chance of precipitation is 90%.
Wednesday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 85. Windy.
Wednesday Night
Isolated showers. Mostly cloudy, with a low around 79. Breezy.
Thursday
Mostly sunny, with a high near 86. Breezy.
Thursday Night
Partly cloudy, with a low around 77. Breezy.
Friday
Mostly sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 78.
Saturday
Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Tamuning GU
 13.49°N 144.79°E
10:56 am ChST Apr 11, 2026
3pm ChST Apr 11, 2026-6pm ChST Apr 18, 2026
 
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