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Maina, Guam Weather Forecast
Maina, GU Weather Forecast Dated: 334 PM Tue Sep 01 2026 (Maina Time)
Expect a very warm period with more clouds than sun and frequent chances of rain over the next two weeks. generally humid conditions and no major pressure swings will dominate. A few thunderstorms possible.
Tuesday, September 1, 2026
Mid-Morning
83°F 28°C
Light Showers
Mid-Afternoon
84°F 29°C
Scattered Showers
Early-Evening
81°F 27°C
Light Showers
Very warm with a mix of sun and clouds, steady humidity and steady pressure. Spotty showers, dry in most areas. Winds shifting from NW to ESE at 3 mph 4 km/h.
Wednesday, September 2, 2026
Mid-Morning
82°F 28°C
Scattered Showers
Mid-Afternoon
84°F 29°C
Nearby Thunderstorms
Early-Evening
83°F 28°C
Partly Cloudy
Very warm with cloudy skies, steady humidity and steady pressure. A stray thunderstorm possible.
Thursday, September 3, 2026
Mid-Morning
81°F 27°C
Light Showers
Mid-Afternoon
81°F 27°C
Light Showers
Early-Evening
81°F 27°C
Light Showers
Very warm with a mix of sun and clouds, steady humidity and steady pressure. Thunderstorms possible in the afternoon. Winds SW at 18 mph 29 km/h.
Friday, September 4, 2026
Mid-Morning
83°F 28°C
Light Showers
Mid-Afternoon
83°F 28°C
Scattered Showers
Early-Evening
82°F 28°C
Light Showers
Very warm with a mix of sun and clouds, steady humidity and steady pressure. Scattered showers, some areas remaining dry. A stray shower or storm late in the day. Winds shifting from SW to WSW at 19 mph 31 km/h.
Saturday, September 5, 2026
Mid-Morning
82°F 28°C
Light Showers
Mid-Afternoon
83°F 28°C
Light Showers
Early-Evening
82°F 28°C
Light Showers
Very warm with a mix of sun and clouds, steady humidity and steady pressure. A stray shower or storm late in the day. Winds WSW at 19 mph 30 km/h.
Sunday, September 6, 2026
Mid-Morning
82°F 28°C
Heavy Rain Showers
Mid-Afternoon
82°F 28°C
Light Showers
Early-Evening
82°F 28°C
Light Showers
Very warm with a mix of sun and clouds, steady humidity and steady pressure. Thunderstorms possible in the afternoon. Winds WSW at 16 mph 26 km/h.
Monday, September 7, 2026
Mid-Morning
82°F 28°C
Nearby Thunderstorms
Mid-Afternoon
83°F 28°C
Nearby Thunderstorms
Early-Evening
82°F 28°C
Light Showers
Very warm with cloudy skies, steady humidity and steady pressure. Spotty thunderstorms possible. A stray shower or storm late in the day. Winds SW at 18 mph 29 km/h.
Tuesday, September 8, 2026
Mid-Morning
83°F 28°C
Light Showers
Mid-Afternoon
83°F 29°C
Nearby Thunderstorms
Early-Evening
83°F 28°C
Light Showers
Very warm with cloudy skies, steady humidity and steady pressure. Spotty thunderstorms possible. A stray shower or storm late in the day. Winds SW at 19 mph 31 km/h.
Wednesday, September 9, 2026
Mid-Morning
82°F 28°C
Light Showers
Mid-Afternoon
82°F 28°C
Light Showers
Early-Evening
81°F 27°C
Light Showers
Very warm with a mix of sun and clouds, steady humidity and steady pressure. Thunderstorms possible in the afternoon. Winds SW at 19 mph 31 km/h.
Thursday, September 10, 2026
Mid-Morning
80°F 26°C
Light Showers
Mid-Afternoon
79°F 26°C
Light Showers
Early-Evening
79°F 26°C
Scattered Showers
Warm with a mix of sun and clouds, steady humidity and steady pressure. A stray shower or storm late in the day. Winds shifting from SW to SSW at 19 mph 31 km/h.
Friday, September 11, 2026
Mid-Morning
81°F 27°C
Scattered Showers
Mid-Afternoon
82°F 28°C
Scattered Showers
Early-Evening
81°F 27°C
Overcast
Very warm with a mix of sun and clouds, steady humidity and steady pressure. Scattered showers, some areas remaining dry. A stray shower or storm late in the day. Winds SW at 12 mph 19 km/h.
Saturday, September 12, 2026
Mid-Morning
82°F 28°C
Cloudy
Mid-Afternoon
84°F 29°C
Partly Cloudy
Early-Evening
83°F 28°C
Scattered Showers
Very warm with partly sunny skies in the morning, then partly sunny for the afternoon and evening, steady humidity and steady pressure.
Sunday, September 13, 2026
Mid-Morning
82°F 28°C
Overcast
Mid-Afternoon
83°F 29°C
Overcast
Early-Evening
82°F 28°C
Overcast
Very warm with overcast skies, steady humidity and steady pressure. Winds shifting from N to NNW at 8 mph 12 km/h.
Monday, September 14, 2026
Mid-Morning
82°F 28°C
Overcast
Mid-Afternoon
83°F 28°C
Overcast
Early-Evening
82°F 28°C
Scattered Showers
Very warm with overcast skies, steady humidity and steady pressure. Winds shifting from NNE to N at 12 mph 19 km/h.
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