Monthly outlook for Harmony, WA: average high 61.3°, average low 43.4°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 7 days and 2.9 inches. The warmest day looks like 8 October (75.3°), the coolest 12 October (37.1°).
61.3°/43.4°
Average high / low
+0.5°
Above normal
4 / 7
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
59.2°
61.4°
-1.2°
17 October – 26 October
64.9°
58°
+3.8°
27 October – 5 November
at normal
54°
—
October records over 66 years
91.6°1 October 1987All-time high
25.9°28 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Mossyrock (2 mi).
Thu, 0875° / 49°0
75 °
Harmony, Thursday, 8 October
Overcast. High 75°, low 49°.
Pressure30.03 inHg
Wind3.2 mph NW
Humidity54%
Visibility6.2 mi
Dew point52°
Fri, 0956° / 44°0.3
56 °
Harmony, Friday, 9 October
Rain. High 56°, low 44°.
Pressure29.88 inHg
Wind7.9 mph W
Humidity86%
Visibility6.2 mi
Dew point48°
Sat, 1052° / 43°0.11
52 °
Harmony, Saturday, 10 October
Light rain. High 52°, low 43°.
Pressure29.85 inHg
Wind1.7 mph NW
Humidity80%
Visibility6.2 mi
Dew point44°
Sun, 1158° / 37°0
58 °
Harmony, Sunday, 11 October
Clear. High 58°, low 37°.
Pressure30.03 inHg
Wind1.9 mph NE
Humidity48%
Visibility6.2 mi
Dew point35°
Mon, 1259° / 37°0
59 °
Harmony, Monday, 12 October
Clear. High 59°, low 37°.
Pressure30.09 inHg
Wind6.1 mph N
Humidity46%
Visibility—
Dew point32°
Tue, 1347° / 41°0.61
47 °
Harmony, Tuesday, 13 October
Rain. High 47°, low 41°.
Pressure29.88 inHg
Wind4.4 mph SW
Humidity95%
Visibility—
Dew point43°
Wed, 1449° / 40°0.17
49 °
Harmony, Wednesday, 14 October
Light rain. High 49°, low 40°.
Pressure30.12 inHg
Wind4.7 mph SW
Humidity92%
Visibility—
Dew point45°
Thu, 1560° / 38°0
60 °
Harmony, Thursday, 15 October
Clear. High 60°, low 38°.
Pressure30.42 inHg
Wind4.7 mph NW
Humidity65%
Visibility—
Dew point38°
Fri, 1664° / 40°0
64 °
Harmony, Friday, 16 October
Clear. High 64°, low 40°.
Pressure30.36 inHg
Wind4.2 mph E
Humidity40%
Visibility—
Dew point31°
Sat, 1764° / 39°0
64 °
Harmony, Saturday, 17 October
Clear. High 64°, low 39°.
Pressure30.03 inHg
Wind4.6 mph E
Humidity27%
Visibility—
Dew point22°
Sun, 1857° / 41°0
57 °
Harmony, Sunday, 18 October
Mostly clear. High 57°, low 41°.
Pressure30.03 inHg
Wind3.5 mph SW
Humidity46%
Visibility—
Dew point33°
Mon, 1962° / 47°0
62 °
Harmony, Monday, 19 October
Light rain. High 62°, low 47°.
Pressure30.15 inHg
Wind3.7 mph SE
Humidity42%
Visibility—
Dew point36°
Tue, 2067° / 50°0
67 °
Harmony, Tuesday, 20 October
Overcast. High 67°, low 50°.
Pressure30.36 inHg
Wind3.6 mph E
Humidity58%
Visibility—
Dew point47°
Wed, 2169° / 50°0
69 °
Harmony, Wednesday, 21 October
Overcast. High 69°, low 50°.
Pressure30.39 inHg
Wind4.7 mph NW
Humidity52%
Visibility—
Dew point45°
Thu, 2270° / 49°0
70 °
Harmony, Thursday, 22 October
Overcast. High 70°, low 49°.
Pressure30.33 inHg
Wind3.6 mph NE
Humidity54%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2358° / 44°0.16
58 °
Harmony, Friday, 23 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.16 in
Chance of precipitation47%
Record high76° (2007)
Record low35° (1975)
Sat, 2457° / 43°0.23
57 °
Harmony, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.23 in
Chance of precipitation50%
Record high74° (1965)
Record low35° (1997)
Sun, 2556° / 44°0.25
56 °
Harmony, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.25 in
Chance of precipitation55%
Record high74° (1965)
Record low34° (2020)
Mon, 2655° / 43°0.31
55 °
Harmony, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.31 in
Chance of precipitation53%
Record high72° (1965)
Record low30° (1970)
Tue, 2756° / 42°0.24
56 °
Harmony, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.24 in
Chance of precipitation47%
Record high70° (2017)
Record low30° (1971)
Wed, 2855° / 42°0.33
55 °
Harmony, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.33 in
Chance of precipitation60%
Record high72° (1962)
Record low26° (1971)
Thu, 2954° / 42°0.2
54 °
Harmony, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.2 in
Chance of precipitation55%
Record high72° (1962)
Record low27° (1971)
Fri, 3054° / 42°0.24
54 °
Harmony, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.24 in
Chance of precipitation53%
Record high65° (1993)
Record low28° (1991)
Sat, 3153° / 42°0.34
53 °
Harmony, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.34 in
Chance of precipitation62%
Record high69° (1966)
Record low29° (2006)
Sun, 0154° / 41°0.29
54 °
Harmony, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.29 in
Chance of precipitation55%
Record high68° (1969)
Record low29° (2003)
Mon, 0254° / 42°0.24
54 °
Harmony, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.24 in
Chance of precipitation58%
Record high70° (1962)
Record low30° (1973)
Tue, 0354° / 42°0.27
54 °
Harmony, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.27 in
Chance of precipitation60%
Record high69° (2010)
Record low30° (1973)
Wed, 0454° / 42°0.38
54 °
Harmony, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.38 in
Chance of precipitation60%
Record high71° (1980)
Record low31° (2003)
Thu, 0552° / 41°0.27
52 °
Harmony, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.27 in
Chance of precipitation70%
Record high66° (1987)
Record low25° (1971)
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 Harmony, 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 Harmony, 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.