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

Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Partly Cloudy

86°F

30°C

Humidity 72%
Wind Speed N 9 mph
Barometer 29.78 in (1007.5 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 13 May 1:54 pm ChST
Extended Forecast for

Santa Rosa GU

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms. Partly sunny, with a high near 87. South wind around 6 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers. Mostly cloudy, with a low around 77. East southeast wind around 5 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 88. East southeast wind around 5 mph. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Isolated showers. Mostly cloudy, with a low around 77. East wind 6 to 10 mph.

    Low: 77 °F

    Isolated
    Showers

  • Friday

    Friday: Isolated showers. Mostly sunny, with a high near 88. East wind 10 to 14 mph, with gusts as high as 18 mph.

    High: 88 °F

    Isolated
    Showers

  • Friday Night

    Friday Night: Isolated showers. Partly cloudy, with a low around 77.

    Low: 77 °F

    Isolated
    Showers

  • Saturday

    Saturday: Isolated showers. Mostly sunny, with a high near 88.

    High: 88 °F

    Isolated
    Showers

  • Saturday Night

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

    Low: 78 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Partly sunny, with a high near 87. South wind around 6 mph. Chance of precipitation is 30%.
Tonight
Scattered showers. Mostly cloudy, with a low around 77. East southeast wind around 5 mph. Chance of precipitation is 40%.
Thursday
Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 88. East southeast wind around 5 mph. Chance of precipitation is 30%.
Thursday Night
Isolated showers. Mostly cloudy, with a low around 77. East wind 6 to 10 mph.
Friday
Isolated showers. Mostly sunny, with a high near 88. East wind 10 to 14 mph, with gusts as high as 18 mph.
Friday Night
Isolated showers. Partly cloudy, with a low around 77.
Saturday
Isolated showers. Mostly sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 78.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 78.
Monday
Partly sunny, with a high near 86.
Monday Night
A chance of showers. Mostly cloudy, with a low around 78.
Tuesday
Partly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
2:27 pm ChST May 13, 2026
Forecast Valid:
2pm ChST May 13, 2026-6pm ChST May 19, 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