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

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Light Rain Fog/Mist

25°C

77°F

Humidity 96%
Wind Speed Calm
Barometer 29.80 in
Dewpoint 24°C (76°F)
Visibility 4.83 km
Heat Index26°C (78°F)
Last update 21 Jul 5:05 am ChST
Extended Forecast for

Santa Rosa GU

  • Overnight

    Overnight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 24. South southeast wind around 11 km/h. Chance of precipitation is 30%.

    Low: 24 °C

    Scattered
    Showers

  • Monday

    Monday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 31. South wind 11 to 21 km/h. Chance of precipitation is 40%.

    High: 31 °C

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 25. East southeast wind 10 to 14 km/h. Chance of precipitation is 30%.

    Low: 25 °C

    Scattered
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 31. South southeast wind 10 to 15 km/h increasing to 16 to 21 km/h.

    High: 31 °C

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 24. Southeast wind 5 to 10 km/h becoming calm after midnight. Chance of precipitation is 40%.

    Low: 24 °C

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms. Partly sunny, with a high near 31. Chance of precipitation is 30%.

    High: 31 °C

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 24.

    Low: 24 °C

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 31.

    High: 31 °C

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 24.

    Low: 24 °C

    Showers
    Likely

Detailed Forecast

Overnight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 24. South southeast wind around 11 km/h. Chance of precipitation is 30%.
Monday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 31. South wind 11 to 21 km/h. Chance of precipitation is 40%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 25. East southeast wind 10 to 14 km/h. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 31. South southeast wind 10 to 15 km/h increasing to 16 to 21 km/h.
Tuesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 24. Southeast wind 5 to 10 km/h becoming calm after midnight. Chance of precipitation is 40%.
Wednesday
Scattered showers and thunderstorms. Partly sunny, with a high near 31. Chance of precipitation is 30%.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 24.
Thursday
A chance of showers. Mostly cloudy, with a high near 31.
Thursday Night
Showers likely. Mostly cloudy, with a low around 24.
Friday
Showers likely. Cloudy, with a high near 29.
Friday Night
A chance of showers. Mostly cloudy, with a low around 24.
Saturday
Showers likely. Cloudy, with a high near 29.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 24.
Sunday
A chance of showers. Partly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa GU
 13.4°N 144.67°E
Last Update:
4:00 am ChST Jul 21, 2025
Forecast Valid:
5am ChST Jul 21, 2025-6pm ChST Jul 27, 2025
 
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