Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Mostly Cloudy

76°F

24°C

Humidity 72%
Wind Speed NW 14 G 24 mph
Barometer 29.79 in (1007.9 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Mar 5:54 am ChST
Extended Forecast for

Santa Rita GU

High Surf Advisory March 15, 06:40am until March 16, 04:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory March 15, 06:40am until March 16, 04:00pm

    NOW until 4:00pm Mon

    High Surf Advisory

  • Today

    High: 87 °F

    Isolated
    Showers

  • Tonight

    Tonight: Isolated showers.  Partly cloudy, with a low around 77. North wind 7 to 11 mph.

    Low: 77 °F

    Isolated
    Showers

  • Monday

    Monday: Isolated showers.  Mostly sunny, with a high near 87. North wind 7 to 13 mph.

    High: 87 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Isolated showers.  Partly cloudy, with a low around 78. North northeast wind 8 to 13 mph.

    Low: 78 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Isolated showers.  Mostly sunny, with a high near 86. Northeast wind 8 to 15 mph, with gusts as high as 20 mph.

    High: 86 °F

    Isolated
    Showers

  • Tuesday Night

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

    Low: 78 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

Detailed Forecast

Today
Isolated showers. Mostly sunny, with a high near 87. North northwest wind 9 to 14 mph.
Tonight
Isolated showers. Partly cloudy, with a low around 77. North wind 7 to 11 mph.
Monday
Isolated showers. Mostly sunny, with a high near 87. North wind 7 to 13 mph.
Monday Night
Isolated showers. Partly cloudy, with a low around 78. North northeast wind 8 to 13 mph.
Tuesday
Isolated showers. Mostly sunny, with a high near 86. Northeast wind 8 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 78.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 77.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 77.
Friday
Mostly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 77.
Saturday
Mostly sunny, with a high near 84.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Rita GU
 13.38°N 144.67°E
6:06 am ChST Mar 15, 2026
6am ChST Mar 15, 2026-6pm ChST Mar 21, 2026
 
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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