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Agana, GU Weather Tomorrow

Find out what tomorrow's weather looks like in Agana with a complete 5 day forecast featuring precipitation potential, daytime and nighttime forecasts, temperature highs and lows in Fahrenheit and Celsius, sunrise and sunset times, cloud cover, wind chill, wind speed, and wind direction for the Agana area.
Updated: Sun Oct 4th 2026 4:45 AM ChST
Agana, GU Weather – 10-4 – Light Rain Shower
84° / 82°
Light Rain Shower
Daytime highs will reach 84°F with lows dropping to 82°F in Agana, where periods of rain are likely. The chance of rain is 86% with an estimated 0.31in. Winds will be strong at speeds peaking at 29mph and gusts of 35.8mph at 5 AM. High humidity with average of 84% is anticipated, the maximum being 84% at 5 AM and 82% being its lowest at 2 PM. Barometric pressure is its highest of 29.76inHg at 8 AM, a lowest point of 29.69inHg at 4 PM with an avg 29.73inHg.
Agana, GU Weather – 10-5 – Scattered Showers
84° / 82°

Weather Tomorrow

Scattered Showers
In Agana, on and off showers are set to occur with highs near 84°F and lows around 82°F. The chance of rain is 83% with an estimated 0.19in. Winds will be strong at speeds peaking at 26mph and gusts of 31.4mph at 2 PM. High humidity with average of 82% is anticipated, the maximum being 84% at 9 PM and 79% being its lowest at 1 PM. Barometric pressure is its highest of 29.81inHg at 10 PM, a lowest point of 29.7inHg at 2 PM with an avg 29.74inHg.
Agana, GU Weather – 10-6 – Light Rain Shower
84° / 80°
Light Rain Shower
In Agana, rain is likely with a high near 84°F and a low around 80°F. The chance of rain is 89% with an estimated 1.12in. Winds will be strong at speeds peaking at 21mph and gusts of 27.1mph at 3 AM. High humidity with average of 83% is anticipated, the maximum being 88% at 5 PM and 80% being its lowest at 1 PM. Barometric pressure is its highest of 29.87inHg at 9 PM, a lowest point of 29.76inHg at 3 AM with an avg 29.82inHg.
Agana, GU Weather – 10-7 – Light Rain Shower
80° / 76°
Light Rain Shower
Rain is in the forecast for Agana, with a high of 80°F and a low of 76°F. The chance of rain is 92% with an estimated 5.27in. Wind will be moderate, blowing around 17mph on average and gusts of 20.6mph at 11 AM. High humidity with average of 91% is anticipated, the maximum being 97% at 6 PM and 84% being its lowest at 5 AM. Barometric pressure is its highest of 29.86inHg at 9 AM, a lowest point of 29.72inHg at 5 PM with an avg 29.8inHg.
Agana, GU Weather – 10-8 – Light Rain Shower
81° / 77°
Light Rain Shower
In Agana, it will rain at times with highs near 81°F and lows around 77°F. The chance of rain is 87% with an estimated 0.94in. Wind will be moderate, blowing around 15mph on average and gusts of 17.9mph at 2 AM. High humidity with average of 82% is anticipated, the maximum being 90% at 12 AM and 78% being its lowest at 11 AM. Barometric pressure is its highest of 29.79inHg at 10 PM, a lowest point of 29.71inHg at 3 PM with an avg 29.74inHg.
Agana, GU Weather – 10-9 – Scattered Showers
84° / 80°
Scattered Showers
Showers likely at times in Agana, with a high of 84°F and a low of 80°F. Rainfall predicted to have a 54% chance with an estimated 0.03in. Wind will be moderate, blowing around 15mph on average and gusts of 17.2mph at 11 PM. The humidity will be on the higher side, averaging about 78%, the maximum being 81% at 12 AM and 75% being its lowest at 12 PM. Barometric pressure is its highest of 29.78inHg at 9 AM, a lowest point of 29.69inHg at 4 PM with an avg 29.74inHg.

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