Monthly outlook for Mount Pleasant, WA: average high 64.2°, average low 47.9°. That is 4.3° above the climate normal for October. Precipitation is expected on 4 days (about 2.2 inches), against a normal of 8 days and 4.0 inches. The warmest day looks like 21 October (74°), the coolest 23 October (40.3°).
64.2°/47.9°
Average high / low
+4.3°
Above normal
4 / 8
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
66.1°
57.7°
+4.7°
30 October – 8 November
61.2°
54°
+4°
9 November – 18 November
at normal
51.1°
—
October records over 66 years
89.4°1 October 1987All-time high
24.3°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Gresham (10 mi).
Wed, 2174° / 50°0
74 °
Mount Pleasant, Wednesday, 21 October
Overcast. High 74°, low 50°.
Pressure29.91 inHg
Wind8.7 mph NE
Humidity36%
Visibility6.2 mi
Dew point40°
Thu, 2259° / 44°0
59 °
Mount Pleasant, Thursday, 22 October
Overcast. High 59°, low 44°.
Pressure30.06 inHg
Wind4.9 mph W
Humidity59%
Visibility6.2 mi
Dew point41°
Fri, 2355° / 40°0
55 °
Mount Pleasant, Friday, 23 October
Partly cloudy. High 55°, low 40°.
Pressure30.33 inHg
Wind2.6 mph SW
Humidity64%
Visibility6.2 mi
Dew point39°
Sat, 2463° / 43°0
63 °
Mount Pleasant, Saturday, 24 October
Overcast. High 63°, low 43°.
Pressure30.18 inHg
Wind13.9 mph NE
Humidity37%
Visibility—
Dew point29°
Sun, 2564° / 50°0
64 °
Mount Pleasant, Sunday, 25 October
Overcast. High 64°, low 50°.
Pressure30.12 inHg
Wind17 mph NE
Humidity37%
Visibility—
Dew point31°
Mon, 2669° / 48°0
69 °
Mount Pleasant, Monday, 26 October
Clear. High 69°, low 48°.
Pressure30.21 inHg
Wind12.5 mph NE
Humidity21%
Visibility—
Dew point20°
Tue, 2768° / 48°0
68 °
Mount Pleasant, Tuesday, 27 October
Overcast. High 68°, low 48°.
Pressure30.15 inHg
Wind11.7 mph NE
Humidity27%
Visibility—
Dew point25°
Wed, 2869° / 48°0
69 °
Mount Pleasant, Wednesday, 28 October
Overcast. High 69°, low 48°.
Pressure30.03 inHg
Wind10.3 mph NE
Humidity25%
Visibility—
Dew point24°
Thu, 2968° / 51°0
68 °
Mount Pleasant, Thursday, 29 October
Overcast. High 68°, low 51°.
Pressure29.91 inHg
Wind9.8 mph NE
Humidity27%
Visibility—
Dew point26°
Fri, 3069° / 48°0
69 °
Mount Pleasant, Friday, 30 October
Overcast. High 69°, low 48°.
Pressure30.03 inHg
Wind6.2 mph E
Humidity29%
Visibility—
Dew point28°
Sat, 3170° / 50°0
70 °
Mount Pleasant, Saturday, 31 October
Partly cloudy. High 70°, low 50°.
Pressure29.91 inHg
Wind9.9 mph E
Humidity29%
Visibility—
Dew point31°
Sun, 0161° / 51°0.18
61 °
Mount Pleasant, Sunday, 1 November
Rain. High 61°, low 51°.
Pressure29.68 inHg
Wind8.7 mph E
Humidity41%
Visibility—
Dew point37°
Mon, 0256° / 52°0.77
56 °
Mount Pleasant, Monday, 2 November
Rain. High 56°, low 52°.
Pressure29.80 inHg
Wind11.4 mph S
Humidity92%
Visibility—
Dew point51°
Tue, 0356° / 49°1.08
56 °
Mount Pleasant, Tuesday, 3 November
Rain. High 56°, low 49°.
Pressure30.09 inHg
Wind7.6 mph S
Humidity90%
Visibility—
Dew point52°
Wed, 0456° / 47°0.14
56 °
Mount Pleasant, Wednesday, 4 November
Light rain. High 56°, low 47°.
Pressure30.12 inHg
Wind8.5 mph SW
Humidity78%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0554° / 41°0.28
54 °
Mount Pleasant, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.28 in
Chance of precipitation73%
Record high66° (1987)
Record low26° (1971)
Fri, 0653° / 42°0.38
53 °
Mount Pleasant, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.38 in
Chance of precipitation67%
Record high64° (1999)
Record low29° (2004)
Sat, 0753° / 41°0.33
53 °
Mount Pleasant, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.33 in
Chance of precipitation62%
Record high66° (2016)
Record low30° (2001)
Sun, 0852° / 39°0.25
52 °
Mount Pleasant, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.25 in
Chance of precipitation52%
Record high68° (1976)
Record low26° (1977)
Mon, 0951° / 40°0.23
51 °
Mount Pleasant, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.23 in
Chance of precipitation62%
Record high64° (1996)
Record low24° (2020)
Tue, 1052° / 40°0.22
52 °
Mount Pleasant, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.22 in
Chance of precipitation55%
Record high66° (2016)
Record low27° (1982)
Wed, 1153° / 40°0.31
53 °
Mount Pleasant, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.31 in
Chance of precipitation58%
Record high64° (2016)
Record low23° (1985)
Thu, 1252° / 40°0.31
52 °
Mount Pleasant, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.31 in
Chance of precipitation60%
Record high63° (1974)
Record low22° (1985)
Fri, 1352° / 40°0.31
52 °
Mount Pleasant, Friday, 13 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.31 in
Chance of precipitation62%
Record high64° (1999)
Record low22° (1978)
Sat, 1452° / 40°0.25
52 °
Mount Pleasant, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.25 in
Chance of precipitation58%
Record high67° (1999)
Record low24° (1985)
Sun, 1551° / 39°0.28
51 °
Mount Pleasant, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.28 in
Chance of precipitation65%
Record high62° (2008)
Record low18° (2014)
Mon, 1650° / 39°0.26
50 °
Mount Pleasant, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.26 in
Chance of precipitation63%
Record high63° (1976)
Record low23° (2014)
Tue, 1750° / 39°0.34
50 °
Mount Pleasant, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.34 in
Chance of precipitation73%
Record high62° (2008)
Record low24° (2014)
Wed, 1848° / 38°0.24
48 °
Mount Pleasant, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.24 in
Chance of precipitation58%
Record high58° (1989)
Record low18° (1994)
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 Mount Pleasant, WA 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 Mount Pleasant, WA 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.