Monthly outlook for Piedmont, WA: average high 52°, average low 44.1°. That is 0.5° below the climate normal for October. Precipitation is expected on 6 days (about 2.1 inches), against a normal of 9 days and 4.5 inches. The warmest day looks like 19 October (58.5°), the coolest 18 October (39.4°).
52°/44.1°
Average high / low
−0.5°
Below normal
6 / 9
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
53.3°
53.8°
-0.3°
28 October – 6 November
49.8°
50.9°
-0.6°
7 November – 16 November
at normal
48.8°
—
October records over 66 years
76.5°1 October 1987All-time high
23.2°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Snug Harbor (4 mi).
Mon, 1959° / 48°0
59 °
Piedmont, Monday, 19 October
Overcast. High 59°, low 48°.
Pressure29.97 inHg
Wind3 mph NE
Humidity69%
Visibility6.2 mi
Dew point42°
Tue, 2056° / 48°0
56 °
Piedmont, Tuesday, 20 October
Clear. High 56°, low 48°.
Pressure30.09 inHg
Wind10.9 mph E
Humidity63%
Visibility6.2 mi
Dew point42°
Wed, 2155° / 49°0
55 °
Piedmont, Wednesday, 21 October
Mostly clear. High 55°, low 49°.
Pressure29.97 inHg
Wind3.7 mph NE
Humidity68%
Visibility6.2 mi
Dew point45°
Thu, 2254° / 48°0.06
54 °
Piedmont, Thursday, 22 October
Light rain. High 54°, low 48°.
Pressure29.97 inHg
Wind15.5 mph SW
Humidity87%
Visibility—
Dew point47°
Fri, 2351° / 45°0
51 °
Piedmont, Friday, 23 October
Overcast. High 51°, low 45°.
Pressure30.27 inHg
Wind15.5 mph SW
Humidity65%
Visibility—
Dew point38°
Sat, 2453° / 45°0.23
53 °
Piedmont, Saturday, 24 October
Rain. High 53°, low 45°.
Pressure30.30 inHg
Wind3.2 mph E
Humidity57%
Visibility—
Dew point36°
Sun, 2549° / 45°0.19
49 °
Piedmont, Sunday, 25 October
Rain. High 49°, low 45°.
Pressure30.15 inHg
Wind8.7 mph E
Humidity84%
Visibility—
Dew point44°
Mon, 2651° / 43°0
51 °
Piedmont, Monday, 26 October
Clear. High 51°, low 43°.
Pressure30.09 inHg
Wind6.6 mph E
Humidity74%
Visibility—
Dew point40°
Tue, 2751° / 43°0
51 °
Piedmont, Tuesday, 27 October
Clear. High 51°, low 43°.
Pressure30.06 inHg
Wind4.2 mph S
Humidity72%
Visibility—
Dew point39°
Wed, 2850° / 43°0.1
50 °
Piedmont, Wednesday, 28 October
Light rain. High 50°, low 43°.
Pressure30.00 inHg
Wind6.1 mph SW
Humidity70%
Visibility—
Dew point38°
Thu, 2948° / 40°0
48 °
Piedmont, Thursday, 29 October
Mostly clear. High 48°, low 40°.
Pressure30.09 inHg
Wind6.5 mph E
Humidity71%
Visibility—
Dew point36°
Fri, 3049° / 41°0
49 °
Piedmont, Friday, 30 October
Clear. High 49°, low 41°.
Pressure30.27 inHg
Wind3.8 mph NE
Humidity55%
Visibility—
Dew point31°
Sat, 3150° / 41°0
50 °
Piedmont, Saturday, 31 October
Overcast. High 50°, low 41°.
Pressure30.12 inHg
Wind7.1 mph E
Humidity58%
Visibility—
Dew point33°
Sun, 0150° / 44°0.07
50 °
Piedmont, Sunday, 1 November
Light rain. High 50°, low 44°.
Pressure29.77 inHg
Wind7.9 mph E
Humidity58%
Visibility—
Dew point34°
Mon, 0252° / 44°1.41
52 °
Piedmont, Monday, 2 November
Rain. High 52°, low 44°.
Pressure29.56 inHg
Wind10.5 mph E
Humidity96%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0351° / 44°0.33
51 °
Piedmont, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.33 in
Chance of precipitation65%
Record high60° (1970)
Record low32° (2017)
Wed, 0451° / 44°0.36
51 °
Piedmont, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.36 in
Chance of precipitation68%
Record high61° (2012)
Record low32° (1973)
Thu, 0550° / 43°0.28
50 °
Piedmont, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low43°
Average precipitation0.28 in
Chance of precipitation70%
Record high59° (2020)
Record low31° (1973)
Fri, 0650° / 43°0.38
50 °
Piedmont, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low43°
Average precipitation0.38 in
Chance of precipitation73%
Record high57° (2006)
Record low24° (2017)
Sat, 0749° / 43°0.34
49 °
Piedmont, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low43°
Average precipitation0.34 in
Chance of precipitation77%
Record high58° (2004)
Record low29° (2017)
Sun, 0849° / 42°0.26
49 °
Piedmont, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.26 in
Chance of precipitation62%
Record high62° (2016)
Record low31° (2022)
Mon, 0949° / 42°0.4
49 °
Piedmont, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.4 in
Chance of precipitation72%
Record high61° (2025)
Record low30° (2022)
Tue, 1049° / 42°0.25
49 °
Piedmont, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.25 in
Chance of precipitation53%
Record high58° (2016)
Record low32° (1985)
Wed, 1149° / 42°0.37
49 °
Piedmont, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.37 in
Chance of precipitation72%
Record high58° (1990)
Record low26° (1985)
Thu, 1249° / 42°0.38
49 °
Piedmont, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.38 in
Chance of precipitation68%
Record high58° (1990)
Record low28° (1985)
Fri, 1349° / 42°0.43
49 °
Piedmont, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.43 in
Chance of precipitation67%
Record high59° (1967)
Record low31° (1985)
Sat, 1449° / 42°0.33
49 °
Piedmont, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.33 in
Chance of precipitation55%
Record high59° (2021)
Record low29° (1964)
Sun, 1548° / 42°0.46
48 °
Piedmont, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low42°
Average precipitation0.46 in
Chance of precipitation70%
Record high56° (2008)
Record low33° (1964)
Mon, 1648° / 41°0.34
48 °
Piedmont, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low41°
Average precipitation0.34 in
Chance of precipitation77%
Record high57° (1976)
Record low34° (1968)
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 Piedmont, 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 Piedmont, 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.