Monthly outlook for Diamond Lake, WA: average high 48°, average low 36.1°. That is 1.8° above the climate normal for October. Precipitation is expected on 7 days (about 2.7 inches), against a normal of 7 days and 1.7 inches. The warmest day looks like 7 November (54.4°), the coolest 4 November (31.6°).
48°/36.1°
Average high / low
+1.8°
Above normal
7 / 7
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
31 October – 9 November
49.7°
45.9°
+2.1°
10 November – 19 November
45.3°
42°
+1.8°
20 November – 29 November
at normal
37.2°
—
October records over 66 years
86°1 October 1992All-time high
9.5°25 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Cusick (15 mi).
Sun, 0149° / 37°0
49 °
Diamond Lake, Sunday, 1 November
Mostly clear. High 49°, low 37°.
Pressure29.97 inHg
Wind1.2 mph S
Humidity62%
Visibility6.2 mi
Dew point36°
Mon, 0246° / 34°0
46 °
Diamond Lake, Monday, 2 November
Overcast. High 46°, low 34°.
Pressure30.42 inHg
Wind2.8 mph NE
Humidity89%
Visibility—
Dew point37°
Tue, 0353° / 33°0
53 °
Diamond Lake, Tuesday, 3 November
Overcast. High 53°, low 33°.
Pressure30.15 inHg
Wind2.7 mph NE
Humidity70%
Visibility4.5 mi
Dew point37°
Wed, 0450° / 32°0
50 °
Diamond Lake, Wednesday, 4 November
Clear. High 50°, low 32°.
Pressure30.15 inHg
Wind1 mph S
Humidity72%
Visibility5.1 mi
Dew point36°
Thu, 0545° / 33°0.12
45 °
Diamond Lake, Thursday, 5 November
Light rain. High 45°, low 33°.
Pressure30.15 inHg
Wind5.2 mph SW
Humidity97%
Visibility—
Dew point38°
Fri, 0649° / 34°0
49 °
Diamond Lake, Friday, 6 November
Overcast. High 49°, low 34°.
Pressure30.06 inHg
Wind6.2 mph SW
Humidity89%
Visibility—
Dew point37°
Sat, 0754° / 37°0
54 °
Diamond Lake, Saturday, 7 November
Overcast. High 54°, low 37°.
Pressure30.12 inHg
Wind3.1 mph NE
Humidity72%
Visibility—
Dew point39°
Sun, 0852° / 39°0.05
52 °
Diamond Lake, Sunday, 8 November
Light rain. High 52°, low 39°.
Pressure30.00 inHg
Wind7.8 mph SW
Humidity79%
Visibility—
Dew point42°
Mon, 0949° / 35°0
49 °
Diamond Lake, Monday, 9 November
Overcast. High 49°, low 35°.
Pressure30.18 inHg
Wind5.7 mph NE
Humidity72%
Visibility—
Dew point35°
Tue, 1047° / 41°0.14
47 °
Diamond Lake, Tuesday, 10 November
Light rain. High 47°, low 41°.
Pressure30.09 inHg
Wind4.9 mph NE
Humidity94%
Visibility—
Dew point42°
Wed, 1146° / 37°0.49
46 °
Diamond Lake, Wednesday, 11 November
Rain. High 46°, low 37°.
Pressure29.71 inHg
Wind11.9 mph S
Humidity87%
Visibility—
Dew point42°
Thu, 1243° / 37°0.91
43 °
Diamond Lake, Thursday, 12 November
Rain. High 43°, low 37°.
Pressure29.85 inHg
Wind5.9 mph S
Humidity91%
Visibility—
Dew point38°
Fri, 1344° / 39°0.49
44 °
Diamond Lake, Friday, 13 November
Rain. High 44°, low 39°.
Pressure29.85 inHg
Wind6.6 mph NE
Humidity82%
Visibility—
Dew point38°
Sat, 1446° / 41°0.48
46 °
Diamond Lake, Saturday, 14 November
Rain. High 46°, low 41°.
Pressure29.83 inHg
Wind6.9 mph SW
Humidity96%
Visibility—
Dew point43°
Sun, 1546° / 36°0.01
46 °
Diamond Lake, Sunday, 15 November
Light rain. High 46°, low 36°.
Pressure29.91 inHg
Wind4.8 mph SW
Humidity81%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 1642° / 31°0.15
42 °
Diamond Lake, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.15 in
Chance of precipitation57%
Record high56° (1999)
Record low10° (1964)
Tue, 1741° / 31°0.16
41 °
Diamond Lake, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.16 in
Chance of precipitation55%
Record high54° (2008)
Record low17° (1968)
Wed, 1840° / 30°0.11
40 °
Diamond Lake, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high40°
Average low30°
Average precipitation0.11 in
Chance of precipitation48%
Record high50° (2008)
Record low9° (1994)
Thu, 1940° / 29°0.11
40 °
Diamond Lake, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.11 in
Chance of precipitation47%
Record high49° (2003)
Record low10° (2011)
Fri, 2040° / 29°0.17
40 °
Diamond Lake, Friday, 20 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.17 in
Chance of precipitation43%
Record high51° (2002)
Record low2° (1977)
Sat, 2139° / 28°0.14
39 °
Diamond Lake, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.14 in
Chance of precipitation50%
Record high51° (2002)
Record low-1° (1985)
Sun, 2238° / 27°0.14
38 °
Diamond Lake, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.14 in
Chance of precipitation47%
Record high49° (2002)
Record low1° (1985)
Mon, 2337° / 27°0.15
37 °
Diamond Lake, Monday, 23 November
Climate normal for this date — 60-year average.
Average high37°
Average low27°
Average precipitation0.15 in
Chance of precipitation68%
Record high53° (2017)
Record low-13° (1985)
Tue, 2437° / 28°0.13
37 °
Diamond Lake, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high37°
Average low28°
Average precipitation0.13 in
Chance of precipitation60%
Record high47° (1990)
Record low-13° (1985)
Wed, 2537° / 27°0.13
37 °
Diamond Lake, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high37°
Average low27°
Average precipitation0.13 in
Chance of precipitation50%
Record high48° (2004)
Record low0° (1993)
Thu, 2636° / 26°0.06
36 °
Diamond Lake, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high36°
Average low26°
Average precipitation0.06 in
Chance of precipitation37%
Record high48° (2016)
Record low-2° (1993)
Fri, 2736° / 26°0.13
36 °
Diamond Lake, Friday, 27 November
Climate normal for this date — 60-year average.
Average high36°
Average low26°
Average precipitation0.13 in
Chance of precipitation48%
Record high47° (2014)
Record low-2° (1985)
Sat, 2837° / 26°0.09
37 °
Diamond Lake, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.09 in
Chance of precipitation38%
Record high53° (2021)
Record low-15° (1985)
Sun, 2936° / 25°0.1
36 °
Diamond Lake, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high36°
Average low25°
Average precipitation0.1 in
Chance of precipitation42%
Record high50° (2021)
Record low-6° (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 Diamond Lake, 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 Diamond Lake, 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.