Monthly outlook for Clackamas, OR: average high 59°, average low 46.8°. That is 0.3° below the climate normal for October. Precipitation is expected on 10 days (about 5.0 inches), against a normal of 8 days and 3.6 inches. The warmest day looks like 21 October (72.7°), the coolest 1 November (40.3°).
59°/46.8°
Average high / low
−0.3°
Below normal
10 / 8
Wet days / normal
5.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
63.3°
61°
+1.2°
27 October – 5 November
51.9°
56.7°
-2.7°
6 November – 15 November
at normal
53.7°
—
October records over 66 years
91.2°1 October 1987All-time high
25.7°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Johnson City (1 mi).
Sun, 1870° / 45°0
70 °
Clackamas, Sunday, 18 October
Overcast. High 70°, low 45°.
Pressure30.09 inHg
Wind4.4 mph N
Humidity56%
Visibility6.2 mi
Dew point42°
Mon, 1962° / 51°0.06
62 °
Clackamas, Monday, 19 October
Light rain. High 62°, low 51°.
Pressure29.97 inHg
Wind2.4 mph S
Humidity65%
Visibility6.2 mi
Dew point45°
Tue, 2070° / 48°0
70 °
Clackamas, Tuesday, 20 October
Overcast. High 70°, low 48°.
Pressure30.00 inHg
Wind5.2 mph N
Humidity58%
Visibility6.2 mi
Dew point46°
Wed, 2173° / 47°0
73 °
Clackamas, Wednesday, 21 October
Clear. High 73°, low 47°.
Pressure29.94 inHg
Wind4.1 mph NW
Humidity61%
Visibility—
Dew point46°
Thu, 2263° / 50°0.04
63 °
Clackamas, Thursday, 22 October
Light rain. High 63°, low 50°.
Pressure30.03 inHg
Wind6.1 mph NW
Humidity56%
Visibility—
Dew point42°
Fri, 2362° / 50°0.01
62 °
Clackamas, Friday, 23 October
Light rain. High 62°, low 50°.
Pressure30.09 inHg
Wind8.5 mph SW
Humidity55%
Visibility—
Dew point40°
Sat, 2459° / 47°0.7
59 °
Clackamas, Saturday, 24 October
Rain. High 59°, low 47°.
Pressure29.83 inHg
Wind16.9 mph S
Humidity79%
Visibility—
Dew point50°
Sun, 2551° / 45°0.24
51 °
Clackamas, Sunday, 25 October
Light rain. High 51°, low 45°.
Pressure30.00 inHg
Wind10.6 mph SW
Humidity93%
Visibility—
Dew point47°
Mon, 2652° / 51°1.25
52 °
Clackamas, Monday, 26 October
Heavy rain. High 52°, low 51°.
Pressure29.91 inHg
Wind15.9 mph SW
Humidity84%
Visibility—
Dew point47°
Tue, 2751° / 48°0.49
51 °
Clackamas, Tuesday, 27 October
Light rain. High 51°, low 48°.
Pressure30.00 inHg
Wind15.1 mph SW
Humidity80%
Visibility—
Dew point44°
Wed, 2850° / 48°0.85
50 °
Clackamas, Wednesday, 28 October
Rain. High 50°, low 48°.
Pressure29.94 inHg
Wind17.4 mph SW
Humidity74%
Visibility—
Dew point42°
Thu, 2952° / 43°0.56
52 °
Clackamas, Thursday, 29 October
Rain. High 52°, low 43°.
Pressure29.88 inHg
Wind10.4 mph SW
Humidity89%
Visibility—
Dew point46°
Fri, 3051° / 42°0.11
51 °
Clackamas, Friday, 30 October
Light rain. High 51°, low 42°.
Pressure30.03 inHg
Wind9.9 mph SW
Humidity79%
Visibility—
Dew point43°
Sat, 3150° / 42°0.64
50 °
Clackamas, Saturday, 31 October
Rain. High 50°, low 42°.
Pressure29.56 inHg
Wind14.6 mph SW
Humidity92%
Visibility—
Dew point47°
Sun, 0156° / 40°0
56 °
Clackamas, Sunday, 1 November
Overcast. High 56°, low 40°.
Pressure29.68 inHg
Wind9 mph NE
Humidity77%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0257° / 43°0.2
57 °
Clackamas, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.2 in
Chance of precipitation48%
Record high70° (1962)
Record low29° (2002)
Tue, 0357° / 43°0.22
57 °
Clackamas, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.22 in
Chance of precipitation57%
Record high70° (2010)
Record low28° (1994)
Wed, 0456° / 43°0.36
56 °
Clackamas, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.36 in
Chance of precipitation60%
Record high70° (1980)
Record low30° (1968)
Thu, 0555° / 43°0.3
55 °
Clackamas, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.3 in
Chance of precipitation72%
Record high69° (1987)
Record low26° (1971)
Fri, 0655° / 43°0.39
55 °
Clackamas, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.39 in
Chance of precipitation67%
Record high65° (1999)
Record low31° (2004)
Sat, 0755° / 43°0.31
55 °
Clackamas, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.31 in
Chance of precipitation58%
Record high67° (2016)
Record low32° (2001)
Sun, 0854° / 40°0.26
54 °
Clackamas, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.26 in
Chance of precipitation53%
Record high69° (1976)
Record low29° (2020)
Mon, 0953° / 41°0.23
53 °
Clackamas, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.23 in
Chance of precipitation60%
Record high65° (1976)
Record low25° (2020)
Tue, 1054° / 41°0.22
54 °
Clackamas, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.22 in
Chance of precipitation55%
Record high67° (2016)
Record low28° (1982)
Wed, 1154° / 41°0.3
54 °
Clackamas, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.3 in
Chance of precipitation58%
Record high66° (1976)
Record low25° (1985)
Thu, 1254° / 42°0.31
54 °
Clackamas, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.31 in
Chance of precipitation60%
Record high64° (1967)
Record low26° (1985)
Fri, 1353° / 41°0.31
53 °
Clackamas, Friday, 13 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.31 in
Chance of precipitation62%
Record high66° (1999)
Record low22° (1978)
Sat, 1453° / 41°0.25
53 °
Clackamas, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.25 in
Chance of precipitation57%
Record high67° (1995)
Record low24° (1978)
Sun, 1553° / 40°0.28
53 °
Clackamas, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.28 in
Chance of precipitation65%
Record high62° (2008)
Record low25° (1978)
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 Clackamas, 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 Clackamas, 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.