Monthly outlook for Alameda, OR: average high 63.8°, average low 47.1°. That is 3.3° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 8 days and 3.1 inches. The warmest day looks like 20 October (74.2°), the coolest 24 October (41.1°).
63.8°/47.1°
Average high / low
+3.3°
Above normal
4 / 8
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
66°
59°
+3.9°
30 October – 8 November
60.3°
55.3°
+2.8°
9 November – 18 November
at normal
52.3°
—
October records over 66 years
90.7°1 October 1987All-time high
26.4°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Portland (2 mi).
Wed, 2174° / 45°0
74 °
Alameda, Wednesday, 21 October
Overcast. High 74°, low 45°.
Pressure29.91 inHg
Wind2.9 mph NW
Humidity52%
Visibility6.2 mi
Dew point44°
Thu, 2261° / 48°0
61 °
Alameda, Thursday, 22 October
Overcast. High 61°, low 48°.
Pressure30.06 inHg
Wind5.5 mph NW
Humidity67%
Visibility6.2 mi
Dew point47°
Fri, 2357° / 42°0
57 °
Alameda, Friday, 23 October
Overcast. High 57°, low 42°.
Pressure30.36 inHg
Wind4.2 mph N
Humidity71%
Visibility6.0 mi
Dew point41°
Sat, 2462° / 41°0
62 °
Alameda, Saturday, 24 October
Overcast. High 62°, low 41°.
Pressure30.18 inHg
Wind6.2 mph N
Humidity69%
Visibility—
Dew point40°
Sun, 2566° / 43°0
66 °
Alameda, Sunday, 25 October
Overcast. High 66°, low 43°.
Pressure30.12 inHg
Wind4.7 mph NW
Humidity51%
Visibility—
Dew point36°
Mon, 2667° / 46°0
67 °
Alameda, Monday, 26 October
Mostly clear. High 67°, low 46°.
Pressure30.21 inHg
Wind10.2 mph NE
Humidity20%
Visibility—
Dew point16°
Tue, 2767° / 46°0
67 °
Alameda, Tuesday, 27 October
Overcast. High 67°, low 46°.
Pressure30.15 inHg
Wind8.7 mph NE
Humidity24%
Visibility—
Dew point20°
Wed, 2866° / 45°0
66 °
Alameda, Wednesday, 28 October
Overcast. High 66°, low 45°.
Pressure30.03 inHg
Wind5.9 mph NE
Humidity25%
Visibility—
Dew point20°
Thu, 2965° / 49°0
65 °
Alameda, Thursday, 29 October
Overcast. High 65°, low 49°.
Pressure29.91 inHg
Wind6.4 mph NE
Humidity26%
Visibility—
Dew point22°
Fri, 3063° / 48°0
63 °
Alameda, Friday, 30 October
Overcast. High 63°, low 48°.
Pressure30.03 inHg
Wind3.1 mph NW
Humidity29%
Visibility—
Dew point24°
Sat, 3167° / 49°0
67 °
Alameda, Saturday, 31 October
Partly cloudy. High 67°, low 49°.
Pressure29.94 inHg
Wind5.6 mph NE
Humidity33%
Visibility—
Dew point29°
Sun, 0158° / 54°0.15
58 °
Alameda, Sunday, 1 November
Light rain. High 58°, low 54°.
Pressure29.71 inHg
Wind5.1 mph N
Humidity42%
Visibility—
Dew point35°
Mon, 0258° / 51°0.54
58 °
Alameda, Monday, 2 November
Rain. High 58°, low 51°.
Pressure29.77 inHg
Wind14.3 mph SW
Humidity94%
Visibility—
Dew point50°
Tue, 0359° / 51°0.59
59 °
Alameda, Tuesday, 3 November
Rain. High 59°, low 51°.
Pressure30.09 inHg
Wind10.6 mph S
Humidity91%
Visibility—
Dew point52°
Wed, 0455° / 48°0.05
55 °
Alameda, Wednesday, 4 November
Light rain. High 55°, low 48°.
Pressure30.12 inHg
Wind11.5 mph S
Humidity73%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0555° / 42°0.23
55 °
Alameda, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.23 in
Chance of precipitation68%
Record high68° (1987)
Record low26° (1971)
Fri, 0654° / 43°0.29
54 °
Alameda, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low43°
Average precipitation0.29 in
Chance of precipitation67%
Record high64° (1999)
Record low30° (1971)
Sat, 0754° / 42°0.24
54 °
Alameda, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.24 in
Chance of precipitation53%
Record high66° (2016)
Record low31° (2020)
Sun, 0853° / 40°0.2
53 °
Alameda, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.2 in
Chance of precipitation52%
Record high68° (1976)
Record low31° (1977)
Mon, 0953° / 41°0.18
53 °
Alameda, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.18 in
Chance of precipitation57%
Record high65° (1976)
Record low27° (2020)
Tue, 1053° / 40°0.18
53 °
Alameda, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.18 in
Chance of precipitation47%
Record high66° (2016)
Record low28° (1978)
Wed, 1153° / 41°0.24
53 °
Alameda, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.24 in
Chance of precipitation53%
Record high65° (1976)
Record low26° (1978)
Thu, 1253° / 41°0.23
53 °
Alameda, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.23 in
Chance of precipitation58%
Record high63° (1967)
Record low24° (1985)
Fri, 1353° / 41°0.25
53 °
Alameda, Friday, 13 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.25 in
Chance of precipitation58%
Record high65° (1999)
Record low23° (1978)
Sat, 1453° / 41°0.2
53 °
Alameda, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.2 in
Chance of precipitation47%
Record high67° (1999)
Record low23° (1978)
Sun, 1553° / 40°0.23
53 °
Alameda, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.23 in
Chance of precipitation62%
Record high62° (2008)
Record low23° (2014)
Mon, 1651° / 40°0.19
51 °
Alameda, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.19 in
Chance of precipitation65%
Record high64° (1976)
Record low23° (2014)
Tue, 1751° / 40°0.24
51 °
Alameda, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.24 in
Chance of precipitation75%
Record high63° (1995)
Record low25° (2014)
Wed, 1850° / 39°0.17
50 °
Alameda, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.17 in
Chance of precipitation57%
Record high60° (1968)
Record low25° (1994)
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, OR 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, OR 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.