Monthly outlook for West Slope, OR: average high 51.8°, average low 43.2°. That is 2.4° above the climate normal for November. Precipitation is expected on 9 days (about 3.4 inches), against a normal of 10 days and 3.9 inches. The warmest day looks like 15 November (56.3°), the coolest 20 November (37.3°).
51.8°/43.2°
Average high / low
+2.4°
Above normal
9 / 10
Wet days / normal
3.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
51.1°
48.3°
+1.6°
25 November – 4 December
53°
45.9°
+4°
5 December – 14 December
at normal
44.3°
—
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, 1652° / 43°0.23
52 °
West Slope, Monday, 16 November
Rain. High 52°, low 43°.
Pressure30.09 inHg
Wind3.2 mph S
Humidity73%
Visibility6.2 mi
Dew point43°
Tue, 1753° / 43°0
53 °
West Slope, Tuesday, 17 November
Overcast. High 53°, low 43°.
Pressure30.03 inHg
Wind6.7 mph S
Humidity73%
Visibility6.2 mi
Dew point42°
Wed, 1847° / 43°0.11
47 °
West Slope, Wednesday, 18 November
Light rain. High 47°, low 43°.
Pressure29.88 inHg
Wind10 mph E
Humidity76%
Visibility6.2 mi
Dew point38°
Thu, 1953° / 41°0
53 °
West Slope, Thursday, 19 November
Partly cloudy. High 53°, low 41°.
Pressure30.09 inHg
Wind8.4 mph NE
Humidity87%
Visibility—
Dew point43°
Fri, 2052° / 37°0
52 °
West Slope, Friday, 20 November
Clear. High 52°, low 37°.
Pressure29.97 inHg
Wind5.8 mph N
Humidity83%
Visibility—
Dew point38°
Sat, 2145° / 43°0.42
45 °
West Slope, Saturday, 21 November
Rain. High 45°, low 43°.
Pressure29.91 inHg
Wind6.6 mph E
Humidity82%
Visibility—
Dew point39°
Sun, 2249° / 41°0.07
49 °
West Slope, Sunday, 22 November
Light rain. High 49°, low 41°.
Pressure29.83 inHg
Wind13.8 mph S
Humidity76%
Visibility—
Dew point37°
Mon, 2349° / 46°0.76
49 °
West Slope, Monday, 23 November
Rain. High 49°, low 46°.
Pressure29.77 inHg
Wind7 mph S
Humidity85%
Visibility—
Dew point42°
Tue, 2455° / 48°0.94
55 °
West Slope, Tuesday, 24 November
Rain. High 55°, low 48°.
Pressure29.59 inHg
Wind13.7 mph S
Humidity94%
Visibility—
Dew point49°
Wed, 2554° / 47°0.39
54 °
West Slope, Wednesday, 25 November
Rain. High 54°, low 47°.
Pressure29.71 inHg
Wind5.7 mph SE
Humidity84%
Visibility—
Dew point46°
Thu, 2655° / 47°0.16
55 °
West Slope, Thursday, 26 November
Rain. High 55°, low 47°.
Pressure30.27 inHg
Wind2.6 mph S
Humidity86%
Visibility—
Dew point46°
Fri, 2752° / 43°0
52 °
West Slope, Friday, 27 November
Overcast. High 52°, low 43°.
Pressure30.30 inHg
Wind5.5 mph NE
Humidity76%
Visibility—
Dew point39°
Sat, 2854° / 41°0
54 °
West Slope, Saturday, 28 November
Clear. High 54°, low 41°.
Pressure30.06 inHg
Wind7.3 mph NE
Humidity65%
Visibility—
Dew point35°
Sun, 2952° / 41°0
52 °
West Slope, Sunday, 29 November
Clear. High 52°, low 41°.
Pressure30.18 inHg
Wind2.6 mph NE
Humidity64%
Visibility—
Dew point33°
Mon, 3052° / 41°0
52 °
West Slope, Monday, 30 November
Mostly clear. High 52°, low 41°.
Pressure30.06 inHg
Wind2.8 mph NE
Humidity50%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 0844° / 34°0.2
44 °
West Slope, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.2 in
Chance of precipitation50%
Record high56° (2025)
Record low2° (1972)
Wed, 0944° / 34°0.3
44 °
West Slope, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.3 in
Chance of precipitation67%
Record high55° (2025)
Record low6° (1972)
Thu, 1045° / 35°0.31
45 °
West Slope, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.31 in
Chance of precipitation68%
Record high59° (2025)
Record low3° (1972)
Fri, 1145° / 35°0.28
45 °
West Slope, Friday, 11 December
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.28 in
Chance of precipitation62%
Record high59° (2025)
Record low12° (1972)
Sat, 1244° / 35°0.25
44 °
West Slope, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.25 in
Chance of precipitation60%
Record high57° (2025)
Record low18° (1972)
Sun, 1344° / 34°0.28
44 °
West Slope, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.28 in
Chance of precipitation62%
Record high54° (1977)
Record low4° (1972)
Mon, 1444° / 35°0.26
44 °
West Slope, Monday, 14 December
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.26 in
Chance of precipitation58%
Record high54° (1962)
Record low23° (1965)
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.