Station APRP7 - 1630000 - Apra Harbor, Guam
August 18, 2026 0430 UTCLocation: 13.444N 144.657E
Wind Direction: NNW (330°)
Wind Speed: 4.1 knots
Wind Gust: 6.0 knots
Atmospheric Pressure: 29.83 in (1010.1 mb)
Air Temperature: 84.9°F (29.4°C)
Water Temperature: 87.4°F (30.8°C)
This Afternoon - 87°F
Aug 18, 2026
5 mph NNW
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Partly sunny, with a high near 87. Heat index values as high as 100. North northwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Tonight - 84°F
Aug 18, 2026
5 to 10 mph N
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Mostly cloudy, with a low around 84. Heat index values as high as 99. North wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Wednesday - 86°F
Aug 18, 2026
10 to 15 mph N
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. Heat index values as high as 99. North wind 10 to 15 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night - 84°F
Aug 19, 2026
5 to 10 mph NNE
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Mostly cloudy, with a low around 84. Heat index values as high as 98. North northeast wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Thursday - 86°F
Aug 19, 2026
5 to 10 mph NE
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms. Partly sunny, with a high near 86. Northeast wind 5 to 10 mph. New rainfall amounts between a tenth and quarter of an inch possible.
Thursday Night - 84°F
Aug 20, 2026
5 mph ENE
Slight Chance Rain Showers
A slight chance of rain showers. Partly cloudy, with a low around 84. New rainfall amounts less than a tenth of an inch possible.
Friday - 88°F
Aug 20, 2026
5 mph NNE
Slight Chance Rain Showers
A slight chance of rain showers. Mostly sunny, with a high near 88.
Friday Night - 85°F
Aug 21, 2026
5 mph SW
Slight Chance Rain Showers
A slight chance of rain showers. Partly cloudy, with a low around 85.
Saturday - 86°F
Aug 21, 2026
5 to 10 mph SW
Chance Rain Showers
A chance of rain showers. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Saturday Night - 84°F
Aug 22, 2026
5 to 10 mph SW
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 84. Chance of precipitation is 30%.
Sunday - 86°F
Aug 22, 2026
10 to 15 mph WSW
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Chance of precipitation is 40%.
Sunday Night - 85°F
Aug 23, 2026
10 to 15 mph WSW
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 85. Chance of precipitation is 40%.
Monday - 86°F
Aug 23, 2026
15 to 20 mph WSW
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Chance of precipitation is 40%.
Monday Night - 85°F
Aug 24, 2026
15 mph WSW
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 85.