Monthly outlook for Alameda, CA: average high 69.3°, average low 55.6°. That is 1.3° below the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 16 October (90.3°), the coolest 15 October (50.2°).
69.3°/55.6°
Average high / low
−1.3°
Below normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
71.3°
72.8°
-0.8°
24 October – 2 November
66°
69.2°
-1.8°
3 November – 12 November
at normal
65.8°
—
October records over 66 years
101.3°1 October 2024All-time high
41.2°29 October 1971All-time low
Thu, 1579° / 50°0
79 °
Alameda, Thursday, 15 October
Clear. High 79°, low 50°.
Pressure30.12 inHg
Wind3.9 mph NE
Humidity25%
Visibility6.2 mi
Dew point40°
Fri, 1690° / 59°0
90 °
Alameda, Friday, 16 October
Clear. High 90°, low 59°.
Pressure30.06 inHg
Wind2.9 mph NE
Humidity15%
Visibility6.2 mi
Dew point33°
Sat, 1784° / 61°0
84 °
Alameda, Saturday, 17 October
Clear. High 84°, low 61°.
Pressure30.03 inHg
Wind2.9 mph W
Humidity27%
Visibility6.2 mi
Dew point43°
Sun, 1867° / 56°0
67 °
Alameda, Sunday, 18 October
Clear. High 67°, low 56°.
Pressure30.03 inHg
Wind10.7 mph SW
Humidity72%
Visibility—
Dew point54°
Mon, 1962° / 54°0
62 °
Alameda, Monday, 19 October
Partly cloudy. High 62°, low 54°.
Pressure30.00 inHg
Wind12.4 mph W
Humidity55%
Visibility—
Dew point44°
Tue, 2065° / 53°0
65 °
Alameda, Tuesday, 20 October
Overcast. High 65°, low 53°.
Pressure29.94 inHg
Wind10.9 mph W
Humidity54%
Visibility—
Dew point43°
Wed, 2165° / 58°0.01
65 °
Alameda, Wednesday, 21 October
Light rain. High 65°, low 58°.
Pressure29.94 inHg
Wind9 mph W
Humidity70%
Visibility—
Dew point51°
Thu, 2263° / 56°0
63 °
Alameda, Thursday, 22 October
Overcast. High 63°, low 56°.
Pressure29.97 inHg
Wind10.4 mph W
Humidity73%
Visibility—
Dew point52°
Fri, 2367° / 55°0
67 °
Alameda, Friday, 23 October
Clear. High 67°, low 55°.
Pressure30.03 inHg
Wind8.2 mph W
Humidity65%
Visibility—
Dew point49°
Sat, 2469° / 55°0
69 °
Alameda, Saturday, 24 October
Clear. High 69°, low 55°.
Pressure30.09 inHg
Wind8.1 mph W
Humidity59%
Visibility—
Dew point49°
Sun, 2569° / 56°0
69 °
Alameda, Sunday, 25 October
Overcast. High 69°, low 56°.
Pressure30.03 inHg
Wind8.1 mph W
Humidity44%
Visibility—
Dew point43°
Mon, 2666° / 55°0
66 °
Alameda, Monday, 26 October
Partly cloudy. High 66°, low 55°.
Pressure29.94 inHg
Wind7.7 mph W
Humidity67%
Visibility—
Dew point50°
Tue, 2768° / 55°0
68 °
Alameda, Tuesday, 27 October
Partly cloudy. High 68°, low 55°.
Pressure29.88 inHg
Wind7.5 mph W
Humidity48%
Visibility—
Dew point43°
Wed, 2864° / 57°0
64 °
Alameda, Wednesday, 28 October
Overcast. High 64°, low 57°.
Pressure29.91 inHg
Wind9.5 mph W
Humidity58%
Visibility—
Dew point47°
Thu, 2960° / 57°0.01
60 °
Alameda, Thursday, 29 October
Light rain. High 60°, low 57°.
Pressure29.88 inHg
Wind12.8 mph W
Humidity62%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3067° / 51°0.05
67 °
Alameda, Friday, 30 October
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.05 in
Chance of precipitation18%
Record high82° (1966)
Record low42° (1971)
Sat, 3169° / 51°0.02
69 °
Alameda, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high69°
Average low51°
Average precipitation0.02 in
Chance of precipitation13%
Record high82° (1966)
Record low43° (1989)
Sun, 0169° / 50°0.04
69 °
Alameda, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high69°
Average low50°
Average precipitation0.04 in
Chance of precipitation10%
Record high85° (2020)
Record low41° (2003)
Mon, 0269° / 51°0.03
69 °
Alameda, Monday, 2 November
Climate normal for this date — 60-year average.
Average high69°
Average low51°
Average precipitation0.03 in
Chance of precipitation13%
Record high84° (1967)
Record low42° (2003)
Tue, 0369° / 50°0.03
69 °
Alameda, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high69°
Average low50°
Average precipitation0.03 in
Chance of precipitation13%
Record high81° (1976)
Record low42° (1994)
Wed, 0468° / 51°0.03
68 °
Alameda, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high68°
Average low51°
Average precipitation0.03 in
Chance of precipitation13%
Record high81° (1976)
Record low41° (1973)
Thu, 0567° / 51°0.06
67 °
Alameda, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.06 in
Chance of precipitation17%
Record high81° (1976)
Record low43° (1996)
Fri, 0666° / 51°0.05
66 °
Alameda, Friday, 6 November
Climate normal for this date — 60-year average.
Average high66°
Average low51°
Average precipitation0.05 in
Chance of precipitation20%
Record high81° (1976)
Record low43° (1972)
Sat, 0766° / 51°0.06
66 °
Alameda, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high66°
Average low51°
Average precipitation0.06 in
Chance of precipitation27%
Record high80° (1991)
Record low41° (1971)
Sun, 0865° / 49°0.08
65 °
Alameda, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.08 in
Chance of precipitation27%
Record high79° (1978)
Record low42° (2011)
Mon, 0965° / 49°0.08
65 °
Alameda, Monday, 9 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.08 in
Chance of precipitation22%
Record high78° (2025)
Record low39° (2020)
Tue, 1064° / 49°0.11
64 °
Alameda, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.11 in
Chance of precipitation27%
Record high80° (2025)
Record low40° (2011)
Wed, 1164° / 49°0.08
64 °
Alameda, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.08 in
Chance of precipitation28%
Record high78° (2019)
Record low37° (2000)
Thu, 1264° / 49°0.07
64 °
Alameda, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.07 in
Chance of precipitation17%
Record high78° (1990)
Record low40° (1985)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Alameda, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Alameda, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.