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Alamo, CA Weather Forecast for 5-Days

Updated: Tue Dec 9th 2025 9:30 PM PST

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Alamo, CA Weather – 12-9 – Fog
55° / 41°
Fog
Alamo may see fog, with daytime highs of 55°F and overnight lows near 41°F. Winds will be light at 4mph and gusts of 7mph at 10 PM. High humidity with average of 90% is anticipated, the maximum being 87% at 10 PM and 87% being its lowest at 10 PM. Barometric pressure is its highest of 30.17inHg at 10 PM, a lowest point of 30.17inHg at 10 PM with an avg 30.17inHg.
Alamo, CA Weather – 12-10 – Sunny
63° / 40°
Sunny
Alamo is set for a sunny day with temperatures peaking at 63°F and dipping to 40°F. Winds will be light at 4mph and gusts of 8mph at 3 AM. The humidity will be on the higher side, averaging about 76%, the maximum being 99% at 8 AM and 54% being its lowest at 3 PM. Barometric pressure is its highest of 30.19inHg at 10 AM, a lowest point of 30.1inHg at 11 PM with an avg 30.15inHg.
Alamo, CA Weather – 12-11 – Sunny
67° / 50°
Sunny
In Alamo, sunshine is likely with a high near 67°F and a low around 50°F. Winds will be light at 4mph and gusts of 8mph at 3 AM. The humidity will be on the higher side, averaging about 63%, the maximum being 76% at 8 AM and 47% being its lowest at 2 PM. Barometric pressure is its highest of 30.13inHg at 10 AM, a lowest point of 30.05inHg at 5 PM with an avg 30.1inHg.
Alamo, CA Weather – 12-12 – Sunny
66° / 50°
Sunny
Daytime highs will reach 66°F with lows dropping to 50°F in Alamo, where it will be sunny. Winds will be light at 4mph and gusts of 8.5mph at 3 AM. Humidity levels should be comfortable, sitting around 50% on average, the maximum being 59% at 9 PM and 42% being its lowest at 2 PM. Barometric pressure is its highest of 30.07inHg at 10 AM, a lowest point of 29.96inHg at 6 PM with an avg 30.03inHg.
Alamo, CA Weather – 12-13 – Sunny
66° / 49°
Sunny
It will be sunny in Alamo, with a high of 66°F and a low of 49°F. Winds will be light at 4mph and gusts of 8mph at 7 AM. Humidity levels should be comfortable, sitting around 56% on average, the maximum being 70% at 8 AM and 37% being its lowest at 3 PM. Barometric pressure is its highest of 30.05inHg at 11 PM, a lowest point of 29.98inHg at 4 PM with an avg 30.01inHg.
Alamo, CA Weather – 12-14 – Sunny
66° / 49°
Sunny
In Alamo, it will be sunny with highs near 66°F and lows around 49°F. Winds will be light at 4mph and gusts of 7.5mph at 4 AM. Humidity levels should be comfortable, sitting around 55% on average, the maximum being 67% at 8 AM and 34% being its lowest at 2 PM. Barometric pressure is its highest of 30.16inHg at 11 PM, a lowest point of 30.06inHg at 5 AM with an avg 30.1inHg.

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