Monthly outlook for West Slope, OR: average high 54.8°, average low 47.1°. That is 2.8° above the climate normal for November. Precipitation is expected on 10 days (about 4.0 inches), against a normal of 9 days and 3.7 inches. The warmest day looks like 11 November (65.6°), the coolest 23 November (40.5°).
54.8°/47.1°
Average high / low
+2.8°
Above normal
10 / 9
Wet days / normal
4.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 November – 17 November
57.7°
51.1°
+3.7°
18 November – 27 November
49.9°
47.3°
+1.5°
28 November – 7 December
at normal
45.2°
—
November records over 66 years
66.9°1 November 1962All-time high
5°23 November 1985All-time low
Climate normals and records are computed from the nearest reference point — Cedar Mill (3 mi).
Mon, 0957° / 50°0.44
57 °
West Slope, Monday, 9 November
Heavy rain. High 57°, low 50°.
Pressure29.91 inHg
Wind2.2 mph SW
Humidity87%
Visibility1.5 mi
Dew point52°
Tue, 1061° / 53°0.54
61 °
West Slope, Tuesday, 10 November
Rain. High 61°, low 53°.
Pressure30.12 inHg
Wind8.8 mph S
Humidity89%
Visibility5.6 mi
Dew point57°
Wed, 1166° / 49°0
66 °
West Slope, Wednesday, 11 November
Partly cloudy. High 66°, low 49°.
Pressure29.94 inHg
Wind4.4 mph SE
Humidity69%
Visibility6.2 mi
Dew point53°
Thu, 1259° / 49°0.03
59 °
West Slope, Thursday, 12 November
Light rain. High 59°, low 49°.
Pressure29.77 inHg
Wind14 mph S
Humidity90%
Visibility—
Dew point52°
Fri, 1357° / 53°0.2
57 °
West Slope, Friday, 13 November
Light rain. High 57°, low 53°.
Pressure29.65 inHg
Wind16.7 mph S
Humidity85%
Visibility—
Dew point51°
Sat, 1461° / 53°0.01
61 °
West Slope, Saturday, 14 November
Light rain. High 61°, low 53°.
Pressure29.74 inHg
Wind3.4 mph SE
Humidity65%
Visibility—
Dew point44°
Sun, 1555° / 48°0.23
55 °
West Slope, Sunday, 15 November
Rain. High 55°, low 48°.
Pressure29.65 inHg
Wind5.8 mph NW
Humidity64%
Visibility—
Dew point43°
Mon, 1653° / 44°0.01
53 °
West Slope, Monday, 16 November
Light rain. High 53°, low 44°.
Pressure30.03 inHg
Wind3.6 mph SW
Humidity77%
Visibility—
Dew point41°
Tue, 1755° / 43°0
55 °
West Slope, Tuesday, 17 November
Partly cloudy. High 55°, low 43°.
Pressure30.00 inHg
Wind5.9 mph NE
Humidity61%
Visibility—
Dew point34°
Wed, 1846° / 42°0.11
46 °
West Slope, Wednesday, 18 November
Light rain. High 46°, low 42°.
Pressure29.91 inHg
Wind6.6 mph NE
Humidity71%
Visibility—
Dew point36°
Thu, 1951° / 41°0.41
51 °
West Slope, Thursday, 19 November
Rain. High 51°, low 41°.
Pressure29.91 inHg
Wind12 mph S
Humidity89%
Visibility—
Dew point40°
Fri, 2051° / 45°0.09
51 °
West Slope, Friday, 20 November
Light rain. High 51°, low 45°.
Pressure30.06 inHg
Wind10.5 mph S
Humidity79%
Visibility—
Dew point41°
Sat, 2154° / 51°1.1
54 °
West Slope, Saturday, 21 November
Rain. High 54°, low 51°.
Pressure29.85 inHg
Wind16 mph S
Humidity88%
Visibility—
Dew point48°
Sun, 2253° / 43°0.41
53 °
West Slope, Sunday, 22 November
Rain. High 53°, low 43°.
Pressure29.94 inHg
Wind15.5 mph W
Humidity73%
Visibility—
Dew point41°
Mon, 2346° / 40°0.39
46 °
West Slope, Monday, 23 November
Rain. High 46°, low 40°.
Pressure30.15 inHg
Wind9 mph NE
Humidity81%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2447° / 37°0.3
47 °
West Slope, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.3 in
Chance of precipitation62%
Record high56° (1975)
Record low5° (1985)
Wed, 2547° / 36°0.32
47 °
West Slope, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.32 in
Chance of precipitation63%
Record high57° (1977)
Record low11° (1985)
Thu, 2647° / 36°0.2
47 °
West Slope, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.2 in
Chance of precipitation52%
Record high58° (2014)
Record low22° (1993)
Fri, 2747° / 36°0.23
47 °
West Slope, Friday, 27 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.23 in
Chance of precipitation63%
Record high58° (2021)
Record low21° (1985)
Sat, 2846° / 35°0.19
46 °
West Slope, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.19 in
Chance of precipitation50%
Record high58° (2021)
Record low20° (1985)
Sun, 2946° / 35°0.19
46 °
West Slope, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.19 in
Chance of precipitation50%
Record high58° (2021)
Record low16° (1985)
Mon, 3046° / 35°0.26
46 °
West Slope, Monday, 30 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.26 in
Chance of precipitation62%
Record high58° (2008)
Record low11° (1985)
Tue, 0145° / 36°0.26
45 °
West Slope, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.26 in
Chance of precipitation62%
Record high57° (2021)
Record low19° (1985)
Wed, 0246° / 36°0.35
46 °
West Slope, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.35 in
Chance of precipitation63%
Record high55° (1975)
Record low18° (1985)
Thu, 0346° / 36°0.28
46 °
West Slope, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.28 in
Chance of precipitation60%
Record high57° (2023)
Record low24° (1992)
Fri, 0445° / 35°0.32
45 °
West Slope, Friday, 4 December
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.32 in
Chance of precipitation55%
Record high60° (2023)
Record low21° (1994)
Sat, 0545° / 34°0.23
45 °
West Slope, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.23 in
Chance of precipitation48%
Record high60° (2023)
Record low21° (1972)
Sun, 0644° / 35°0.27
44 °
West Slope, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.27 in
Chance of precipitation60%
Record high57° (2023)
Record low20° (1972)
Mon, 0744° / 35°0.23
44 °
West Slope, Monday, 7 December
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.23 in
Chance of precipitation48%
Record high56° (2025)
Record low9° (1972)
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 West Slope, 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 West Slope, 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.