Monthly outlook for Sifton, WA: average high 55.6°, average low 43.9°. That is 1° above the climate normal for October. Precipitation is expected on 8 days (about 5.0 inches), against a normal of 10 days and 5.5 inches. The warmest day looks like 6 November (66.5°), the coolest 31 October (34.3°).
55.6°/43.9°
Average high / low
+1°
Above normal
8 / 10
Wet days / normal
5.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
55.8°
54.6°
+0.7°
7 November – 16 November
55.3°
51.7°
+2°
17 November – 26 November
at normal
47.7°
—
October records over 66 years
88.9°1 October 1987All-time high
26.6°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Mill Plain (3 mi).
Thu, 2951° / 42°0.5
51 °
Sifton, Thursday, 29 October
Rain. High 51°, low 42°.
Pressure30.00 inHg
Wind4.5 mph W
Humidity89%
Visibility4.8 mi
Dew point46°
Fri, 3052° / 37°0
52 °
Sifton, Friday, 30 October
Overcast. High 52°, low 37°.
Pressure29.97 inHg
Wind4.5 mph S
Humidity89%
Visibility0.4 mi
Dew point44°
Sat, 3152° / 34°0.01
52 °
Sifton, Saturday, 31 October
Light rain. High 52°, low 34°.
Pressure30.00 inHg
Wind3.5 mph W
Humidity84%
Visibility6.2 mi
Dew point41°
Sun, 0149° / 37°0
49 °
Sifton, Sunday, 1 November
Overcast. High 49°, low 37°.
Pressure30.24 inHg
Wind2.3 mph E
Humidity89%
Visibility—
Dew point42°
Mon, 0254° / 34°0
54 °
Sifton, Monday, 2 November
Overcast. High 54°, low 34°.
Pressure30.30 inHg
Wind5.7 mph W
Humidity88%
Visibility—
Dew point41°
Tue, 0361° / 43°0
61 °
Sifton, Tuesday, 3 November
Overcast. High 61°, low 43°.
Pressure30.15 inHg
Wind4.4 mph E
Humidity46%
Visibility—
Dew point31°
Wed, 0460° / 40°0
60 °
Sifton, Wednesday, 4 November
Overcast. High 60°, low 40°.
Pressure29.94 inHg
Wind3 mph E
Humidity43%
Visibility—
Dew point30°
Thu, 0560° / 42°0
60 °
Sifton, Thursday, 5 November
Mostly clear. High 60°, low 42°.
Pressure30.03 inHg
Wind3.2 mph NW
Humidity47%
Visibility—
Dew point33°
Fri, 0666° / 48°0.09
66 °
Sifton, Friday, 6 November
Light rain. High 66°, low 48°.
Pressure29.83 inHg
Wind6.7 mph E
Humidity45%
Visibility—
Dew point34°
Sat, 0758° / 49°0.56
58 °
Sifton, Saturday, 7 November
Rain. High 58°, low 49°.
Pressure29.80 inHg
Wind8.4 mph S
Humidity89%
Visibility—
Dew point49°
Sun, 0855° / 50°1.39
55 °
Sifton, Sunday, 8 November
Rain. High 55°, low 50°.
Pressure29.71 inHg
Wind10.3 mph SW
Humidity95%
Visibility—
Dew point49°
Mon, 0955° / 50°0.53
55 °
Sifton, Monday, 9 November
Light rain. High 55°, low 50°.
Pressure30.06 inHg
Wind10.2 mph SW
Humidity84%
Visibility—
Dew point49°
Tue, 1053° / 51°0.44
53 °
Sifton, Tuesday, 10 November
Light rain. High 53°, low 51°.
Pressure30.18 inHg
Wind12.2 mph S
Humidity94%
Visibility—
Dew point50°
Wed, 1154° / 49°0.86
54 °
Sifton, Wednesday, 11 November
Rain. High 54°, low 49°.
Pressure30.12 inHg
Wind4.3 mph SW
Humidity93%
Visibility—
Dew point49°
Thu, 1257° / 49°0.03
57 °
Sifton, Thursday, 12 November
Light rain. High 57°, low 49°.
Pressure29.88 inHg
Wind3.3 mph NW
Humidity85%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1352° / 40°0.39
52 °
Sifton, Friday, 13 November
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.39 in
Chance of precipitation63%
Record high64° (1999)
Record low24° (1978)
Sat, 1451° / 40°0.31
51 °
Sifton, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.31 in
Chance of precipitation60%
Record high66° (1999)
Record low24° (1985)
Sun, 1551° / 39°0.33
51 °
Sifton, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.33 in
Chance of precipitation65%
Record high62° (2008)
Record low19° (2014)
Mon, 1650° / 40°0.32
50 °
Sifton, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.32 in
Chance of precipitation72%
Record high63° (1976)
Record low20° (2014)
Tue, 1750° / 39°0.39
50 °
Sifton, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.39 in
Chance of precipitation73%
Record high62° (1995)
Record low21° (2014)
Wed, 1848° / 38°0.29
48 °
Sifton, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.29 in
Chance of precipitation58%
Record high58° (1989)
Record low23° (1975)
Thu, 1949° / 38°0.47
49 °
Sifton, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.47 in
Chance of precipitation67%
Record high58° (1987)
Record low27° (2000)
Fri, 2049° / 37°0.39
49 °
Sifton, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.39 in
Chance of precipitation58%
Record high65° (2002)
Record low21° (1977)
Sat, 2147° / 37°0.36
47 °
Sifton, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.36 in
Chance of precipitation57%
Record high60° (2002)
Record low20° (1978)
Sun, 2247° / 36°0.41
47 °
Sifton, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.41 in
Chance of precipitation58%
Record high62° (2017)
Record low17° (1985)
Mon, 2347° / 37°0.46
47 °
Sifton, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.46 in
Chance of precipitation75%
Record high59° (2017)
Record low5° (1985)
Tue, 2447° / 37°0.49
47 °
Sifton, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.49 in
Chance of precipitation70%
Record high56° (1974)
Record low5° (1985)
Wed, 2547° / 36°0.53
47 °
Sifton, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.53 in
Chance of precipitation67%
Record high57° (1977)
Record low7° (1985)
Thu, 2647° / 36°0.28
47 °
Sifton, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.28 in
Chance of precipitation60%
Record high60° (2014)
Record low23° (1993)
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 Sifton, 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 Sifton, 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.