Monthly outlook for West Slope, OR: average high 53.5°, average low 46.6°. That is 2.4° above the climate normal for November. Precipitation is expected on 10 days (about 2.9 inches), against a normal of 9 days and 3.9 inches. The warmest day looks like 11 November (63°), the coolest 22 November (42°).
53.5°/46.6°
Average high / low
+2.4°
Above normal
10 / 9
Wet days / normal
2.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 November – 19 November
55.3°
50.5°
+2.7°
20 November – 29 November
50.5°
46.7°
+2.1°
30 November – 9 December
at normal
44.9°
—
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).
Wed, 1163° / 48°0
63 °
West Slope, Wednesday, 11 November
Overcast. High 63°, low 48°.
Pressure30.00 inHg
Wind2.7 mph SW
Humidity76%
Visibility6.2 mi
Dew point54°
Thu, 1261° / 49°0
61 °
West Slope, Thursday, 12 November
Overcast. High 61°, low 49°.
Pressure29.77 inHg
Wind1.4 mph SW
Humidity74%
Visibility6.2 mi
Dew point51°
Fri, 1355° / 50°0.22
55 °
West Slope, Friday, 13 November
Rain. High 55°, low 50°.
Pressure29.38 inHg
Wind11.6 mph S
Humidity94%
Visibility3.7 mi
Dew point50°
Sat, 1458° / 49°0.04
58 °
West Slope, Saturday, 14 November
Light rain. High 58°, low 49°.
Pressure29.77 inHg
Wind10.1 mph S
Humidity70%
Visibility6.2 mi
Dew point46°
Sun, 1553° / 49°0.59
53 °
West Slope, Sunday, 15 November
Rain. High 53°, low 49°.
Pressure29.80 inHg
Wind5.5 mph SE
Humidity96%
Visibility—
Dew point50°
Mon, 1654° / 47°0.13
54 °
West Slope, Monday, 16 November
Light rain. High 54°, low 47°.
Pressure30.00 inHg
Wind7.7 mph S
Humidity91%
Visibility—
Dew point46°
Tue, 1755° / 49°0.34
55 °
West Slope, Tuesday, 17 November
Rain. High 55°, low 49°.
Pressure29.97 inHg
Wind11.4 mph S
Humidity71%
Visibility—
Dew point41°
Wed, 1849° / 44°0.59
49 °
West Slope, Wednesday, 18 November
Light rain. High 49°, low 44°.
Pressure29.85 inHg
Wind9.1 mph S
Humidity78%
Visibility—
Dew point41°
Thu, 1947° / 42°0.05
47 °
West Slope, Thursday, 19 November
Light rain. High 47°, low 42°.
Pressure30.12 inHg
Wind5.6 mph S
Humidity78%
Visibility—
Dew point38°
Fri, 2046° / 43°0
46 °
West Slope, Friday, 20 November
Overcast. High 46°, low 43°.
Pressure30.36 inHg
Wind4.8 mph E
Humidity59%
Visibility—
Dew point31°
Sat, 2154° / 45°0
54 °
West Slope, Saturday, 21 November
Overcast. High 54°, low 45°.
Pressure30.42 inHg
Wind10.6 mph NE
Humidity53%
Visibility—
Dew point33°
Sun, 2252° / 42°0
52 °
West Slope, Sunday, 22 November
Overcast. High 52°, low 42°.
Pressure30.24 inHg
Wind9 mph E
Humidity51%
Visibility—
Dew point29°
Mon, 2346° / 44°0.01
46 °
West Slope, Monday, 23 November
Light rain. High 46°, low 44°.
Pressure30.12 inHg
Wind3.4 mph NE
Humidity63%
Visibility—
Dew point33°
Tue, 2450° / 45°0.31
50 °
West Slope, Tuesday, 24 November
Light rain. High 50°, low 45°.
Pressure29.91 inHg
Wind5.9 mph S
Humidity95%
Visibility—
Dew point46°
Wed, 2553° / 48°0.33
53 °
West Slope, Wednesday, 25 November
Rain. High 53°, low 48°.
Pressure30.12 inHg
Wind7.4 mph SE
Humidity84%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)
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.