Monthly outlook for West Slope, OR: average high 54.2°, average low 45°. That is 0° below the climate normal for October. Precipitation is expected on 13 days (about 3.9 inches), against a normal of 9 days and 3.4 inches. The warmest day looks like 5 November (63.8°), the coolest 31 October (38.9°).
54.2°/45°
Average high / low
−0°
Below normal
13 / 9
Wet days / normal
3.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
53.3°
55.3°
-1.1°
4 November – 13 November
55.7°
52.3°
+1.9°
14 November – 23 November
at normal
48.7°
—
October records over 66 years
88.2°1 October 1987All-time high
25°28 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Cedar Mill (3 mi).
Mon, 2655° / 45°0.36
55 °
West Slope, Monday, 26 October
Rain. High 55°, low 45°.
Pressure30.06 inHg
Wind9.2 mph S
Humidity94%
Visibility2.6 mi
Dew point50°
Tue, 2757° / 45°0.29
57 °
West Slope, Tuesday, 27 October
Rain. High 57°, low 45°.
Pressure30.06 inHg
Wind2.4 mph SW
Humidity85%
Visibility6.2 mi
Dew point49°
Wed, 2855° / 44°0.17
55 °
West Slope, Wednesday, 28 October
Rain. High 55°, low 44°.
Pressure30.03 inHg
Wind7.2 mph SW
Humidity76%
Visibility6.2 mi
Dew point46°
Thu, 2954° / 41°0.22
54 °
West Slope, Thursday, 29 October
Light rain. High 54°, low 41°.
Pressure29.97 inHg
Wind4.5 mph S
Humidity79%
Visibility6.2 mi
Dew point44°
Fri, 3052° / 40°0.38
52 °
West Slope, Friday, 30 October
Rain. High 52°, low 40°.
Pressure29.97 inHg
Wind4.3 mph S
Humidity81%
Visibility—
Dew point40°
Sat, 3154° / 39°0.02
54 °
West Slope, Saturday, 31 October
Light rain. High 54°, low 39°.
Pressure30.00 inHg
Wind2.4 mph SW
Humidity84%
Visibility—
Dew point40°
Sun, 0153° / 44°0.01
53 °
West Slope, Sunday, 1 November
Light rain. High 53°, low 44°.
Pressure30.09 inHg
Wind6 mph SW
Humidity66%
Visibility—
Dew point38°
Mon, 0255° / 41°0
55 °
West Slope, Monday, 2 November
Overcast. High 55°, low 41°.
Pressure30.03 inHg
Wind7.2 mph NE
Humidity57%
Visibility—
Dew point32°
Tue, 0347° / 45°0.13
47 °
West Slope, Tuesday, 3 November
Light rain. High 47°, low 45°.
Pressure29.80 inHg
Wind11.1 mph NE
Humidity69%
Visibility—
Dew point37°
Wed, 0449° / 45°0.2
49 °
West Slope, Wednesday, 4 November
Light rain. High 49°, low 45°.
Pressure29.71 inHg
Wind10.5 mph E
Humidity84%
Visibility—
Dew point42°
Thu, 0564° / 49°0.15
64 °
West Slope, Thursday, 5 November
Light rain. High 64°, low 49°.
Pressure29.65 inHg
Wind7.4 mph S
Humidity73%
Visibility—
Dew point49°
Fri, 0653° / 50°0.34
53 °
West Slope, Friday, 6 November
Rain. High 53°, low 50°.
Pressure29.62 inHg
Wind9 mph S
Humidity87%
Visibility—
Dew point48°
Sat, 0761° / 50°0.04
61 °
West Slope, Saturday, 7 November
Light rain. High 61°, low 50°.
Pressure29.91 inHg
Wind8.2 mph S
Humidity76%
Visibility—
Dew point48°
Sun, 0854° / 50°0.65
54 °
West Slope, Sunday, 8 November
Rain. High 54°, low 50°.
Pressure29.97 inHg
Wind5.4 mph S
Humidity86%
Visibility—
Dew point49°
Mon, 0953° / 49°0.2
53 °
West Slope, Monday, 9 November
Light rain. High 53°, low 49°.
Pressure29.88 inHg
Wind12.6 mph SW
Humidity81%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1052° / 40°0.18
52 °
West Slope, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.18 in
Chance of precipitation47%
Record high63° (2016)
Record low27° (1978)
Wed, 1152° / 40°0.24
52 °
West Slope, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.24 in
Chance of precipitation53%
Record high63° (1976)
Record low24° (1985)
Thu, 1252° / 40°0.23
52 °
West Slope, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.23 in
Chance of precipitation58%
Record high62° (2025)
Record low23° (1985)
Fri, 1351° / 40°0.24
51 °
West Slope, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.24 in
Chance of precipitation58%
Record high63° (1999)
Record low23° (1978)
Sat, 1451° / 40°0.19
51 °
West Slope, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.19 in
Chance of precipitation47%
Record high64° (1995)
Record low22° (1978)
Sun, 1551° / 39°0.23
51 °
West Slope, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.23 in
Chance of precipitation60%
Record high60° (2021)
Record low17° (2014)
Mon, 1649° / 39°0.19
49 °
West Slope, Monday, 16 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.19 in
Chance of precipitation65%
Record high63° (1976)
Record low19° (2014)
Tue, 1749° / 39°0.24
49 °
West Slope, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.24 in
Chance of precipitation73%
Record high60° (1995)
Record low23° (2014)
Wed, 1848° / 38°0.16
48 °
West Slope, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.16 in
Chance of precipitation57%
Record high58° (1968)
Record low25° (1975)
Thu, 1949° / 38°0.35
49 °
West Slope, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.35 in
Chance of precipitation63%
Record high58° (1987)
Record low26° (2000)
Fri, 2049° / 37°0.24
49 °
West Slope, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.24 in
Chance of precipitation57%
Record high64° (2002)
Record low22° (1977)
Sat, 2147° / 36°0.24
47 °
West Slope, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.24 in
Chance of precipitation53%
Record high58° (2002)
Record low17° (1978)
Sun, 2247° / 36°0.28
47 °
West Slope, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.28 in
Chance of precipitation58%
Record high64° (2017)
Record low16° (1985)
Mon, 2347° / 36°0.26
47 °
West Slope, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.26 in
Chance of precipitation65%
Record high60° (2017)
Record low5° (1985)
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.