Monthly outlook for Headquarters, WA: average high 66.4°, average low 46.1°. That is 4.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 7 days and 3.1 inches. The warmest day looks like 16 October (76.4°), the coolest 11 October (42.2°).
66.4°/46.1°
Average high / low
+4.3°
Above normal
1 / 7
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
66.5°
59.8°
+3.7°
20 October – 29 October
66.3°
55.9°
+5.8°
30 October – 8 November
at normal
52.6°
—
October records over 66 years
90.3°1 October 1987All-time high
23.7°30 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Sightly (5 mi).
Sun, 1163° / 42°0
63 °
Headquarters, Sunday, 11 October
Clear. High 63°, low 42°.
Pressure29.94 inHg
Wind7.2 mph N
Humidity52%
Visibility6.2 mi
Dew point40°
Mon, 1264° / 44°0
64 °
Headquarters, Monday, 12 October
Clear. High 64°, low 44°.
Pressure30.06 inHg
Wind3.1 mph NW
Humidity49%
Visibility6.2 mi
Dew point39°
Tue, 1366° / 42°0
66 °
Headquarters, Tuesday, 13 October
Clear. High 66°, low 42°.
Pressure30.18 inHg
Wind1.9 mph SW
Humidity45%
Visibility1.4 mi
Dew point39°
Wed, 1468° / 46°0
68 °
Headquarters, Wednesday, 14 October
Clear. High 68°, low 46°.
Pressure30.27 inHg
Wind4.9 mph N
Humidity55%
Visibility6.2 mi
Dew point46°
Thu, 1574° / 47°0
74 °
Headquarters, Thursday, 15 October
Clear. High 74°, low 47°.
Pressure30.24 inHg
Wind3.6 mph N
Humidity63%
Visibility—
Dew point47°
Fri, 1676° / 47°0
76 °
Headquarters, Friday, 16 October
Mostly clear. High 76°, low 47°.
Pressure30.06 inHg
Wind4.4 mph NW
Humidity48%
Visibility—
Dew point45°
Sat, 1770° / 52°0
70 °
Headquarters, Saturday, 17 October
Overcast. High 70°, low 52°.
Pressure30.21 inHg
Wind2.7 mph W
Humidity55%
Visibility—
Dew point46°
Sun, 1870° / 51°0
70 °
Headquarters, Sunday, 18 October
Partly cloudy. High 70°, low 51°.
Pressure30.15 inHg
Wind3.2 mph W
Humidity68%
Visibility—
Dew point52°
Mon, 1959° / 49°0.07
59 °
Headquarters, Monday, 19 October
Light rain. High 59°, low 49°.
Pressure30.15 inHg
Wind6.4 mph SW
Humidity72%
Visibility—
Dew point48°
Tue, 2059° / 45°0
59 °
Headquarters, Tuesday, 20 October
Overcast. High 59°, low 45°.
Pressure30.30 inHg
Wind3.2 mph N
Humidity80%
Visibility—
Dew point47°
Wed, 2162° / 42°0
62 °
Headquarters, Wednesday, 21 October
Overcast. High 62°, low 42°.
Pressure30.15 inHg
Wind5.3 mph N
Humidity60%
Visibility—
Dew point39°
Thu, 2265° / 45°0
65 °
Headquarters, Thursday, 22 October
Overcast. High 65°, low 45°.
Pressure30.12 inHg
Wind3.1 mph N
Humidity46%
Visibility—
Dew point36°
Fri, 2373° / 45°0
73 °
Headquarters, Friday, 23 October
Clear. High 73°, low 45°.
Pressure30.00 inHg
Wind3.1 mph N
Humidity47%
Visibility—
Dew point39°
Sat, 2471° / 49°0
71 °
Headquarters, Saturday, 24 October
Partly cloudy. High 71°, low 49°.
Pressure30.09 inHg
Wind3.1 mph S
Humidity38%
Visibility—
Dew point36°
Sun, 2567° / 46°0
67 °
Headquarters, Sunday, 25 October
Mostly clear. High 67°, low 46°.
Pressure30.15 inHg
Wind5.5 mph N
Humidity50%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2655° / 42°0.3
55 °
Headquarters, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.3 in
Chance of precipitation55%
Record high71° (1965)
Record low27° (2020)
Tue, 2755° / 41°0.26
55 °
Headquarters, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.26 in
Chance of precipitation48%
Record high69° (1987)
Record low29° (1971)
Wed, 2854° / 41°0.3
54 °
Headquarters, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.3 in
Chance of precipitation60%
Record high71° (1962)
Record low26° (1971)
Thu, 2953° / 41°0.2
53 °
Headquarters, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.2 in
Chance of precipitation57%
Record high71° (1962)
Record low27° (1971)
Fri, 3053° / 41°0.25
53 °
Headquarters, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.25 in
Chance of precipitation48%
Record high65° (1993)
Record low24° (2019)
Sat, 3153° / 41°0.36
53 °
Headquarters, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.36 in
Chance of precipitation60%
Record high69° (1966)
Record low27° (2006)
Sun, 0153° / 40°0.29
53 °
Headquarters, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.29 in
Chance of precipitation53%
Record high67° (1962)
Record low28° (2003)
Mon, 0254° / 41°0.22
54 °
Headquarters, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.22 in
Chance of precipitation58%
Record high69° (1962)
Record low28° (1995)
Tue, 0353° / 42°0.27
53 °
Headquarters, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.27 in
Chance of precipitation62%
Record high69° (2010)
Record low28° (2003)
Wed, 0453° / 42°0.35
53 °
Headquarters, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.35 in
Chance of precipitation60%
Record high70° (1980)
Record low30° (2002)
Thu, 0552° / 41°0.26
52 °
Headquarters, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.26 in
Chance of precipitation70%
Record high66° (1987)
Record low26° (1971)
Fri, 0651° / 40°0.38
51 °
Headquarters, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.38 in
Chance of precipitation65%
Record high63° (1999)
Record low28° (2004)
Sat, 0751° / 40°0.32
51 °
Headquarters, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.32 in
Chance of precipitation65%
Record high64° (2016)
Record low30° (2020)
Sun, 0851° / 39°0.24
51 °
Headquarters, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.24 in
Chance of precipitation55%
Record high66° (2016)
Record low24° (2020)
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 Headquarters, 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 Headquarters, 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.