Monthly outlook for Fern Heath, WA: average high 55.7°, average low 45.6°. That is 2.2° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 9 days and 4.0 inches. The warmest day looks like 12 November (63.8°), the coolest 31 October (38°).
55.7°/45.6°
Average high / low
+2.2°
Above normal
5 / 9
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
54.4°
52.5°
+1°
8 November – 17 November
57.9°
50°
+4.4°
18 November – 27 November
at normal
46.3°
—
October records over 66 years
85.8°1 October 1987All-time high
24.8°28 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Federal Way (7 mi).
Fri, 3052° / 43°0.3
52 °
Fern Heath, Friday, 30 October
Rain. High 52°, low 43°.
Pressure29.91 inHg
Wind1.7 mph NE
Humidity88%
Visibility6.2 mi
Dew point44°
Sat, 3152° / 38°0
52 °
Fern Heath, Saturday, 31 October
Overcast. High 52°, low 38°.
Pressure30.03 inHg
Wind5 mph N
Humidity87%
Visibility0.5 mi
Dew point43°
Sun, 0152° / 40°0
52 °
Fern Heath, Sunday, 1 November
Overcast. High 52°, low 40°.
Pressure30.21 inHg
Wind2.1 mph E
Humidity84%
Visibility5.1 mi
Dew point43°
Mon, 0253° / 41°0
53 °
Fern Heath, Monday, 2 November
Overcast. High 53°, low 41°.
Pressure30.27 inHg
Wind3.6 mph N
Humidity90%
Visibility—
Dew point42°
Tue, 0357° / 43°0
57 °
Fern Heath, Tuesday, 3 November
Partly cloudy. High 57°, low 43°.
Pressure30.24 inHg
Wind3.7 mph N
Humidity70%
Visibility—
Dew point41°
Wed, 0456° / 43°0
56 °
Fern Heath, Wednesday, 4 November
Overcast. High 56°, low 43°.
Pressure29.91 inHg
Wind4.6 mph S
Humidity54%
Visibility—
Dew point34°
Thu, 0552° / 47°0.02
52 °
Fern Heath, Thursday, 5 November
Light rain. High 52°, low 47°.
Pressure30.03 inHg
Wind4.2 mph S
Humidity70%
Visibility—
Dew point42°
Fri, 0660° / 48°0
60 °
Fern Heath, Friday, 6 November
Overcast. High 60°, low 48°.
Pressure30.03 inHg
Wind5.3 mph S
Humidity76%
Visibility—
Dew point46°
Sat, 0755° / 50°0.78
55 °
Fern Heath, Saturday, 7 November
Rain. High 55°, low 50°.
Pressure29.83 inHg
Wind14.6 mph SW
Humidity88%
Visibility—
Dew point51°
Sun, 0857° / 47°0.48
57 °
Fern Heath, Sunday, 8 November
Rain. High 57°, low 47°.
Pressure30.30 inHg
Wind11.5 mph SW
Humidity80%
Visibility—
Dew point46°
Mon, 0952° / 45°0.01
52 °
Fern Heath, Monday, 9 November
Light rain. High 52°, low 45°.
Pressure30.21 inHg
Wind5.4 mph NE
Humidity68%
Visibility—
Dew point39°
Tue, 1059° / 48°0
59 °
Fern Heath, Tuesday, 10 November
Overcast. High 59°, low 48°.
Pressure29.97 inHg
Wind2.8 mph S
Humidity67%
Visibility—
Dew point43°
Wed, 1164° / 51°0
64 °
Fern Heath, Wednesday, 11 November
Overcast. High 64°, low 51°.
Pressure29.71 inHg
Wind3.3 mph S
Humidity50%
Visibility—
Dew point38°
Thu, 1264° / 52°0.02
64 °
Fern Heath, Thursday, 12 November
Light rain. High 64°, low 52°.
Pressure29.53 inHg
Wind7 mph N
Humidity50%
Visibility—
Dew point38°
Fri, 1352° / 50°0.12
52 °
Fern Heath, Friday, 13 November
Light rain. High 52°, low 50°.
Pressure29.56 inHg
Wind9.3 mph SW
Humidity83%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1450° / 40°0.3
50 °
Fern Heath, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.3 in
Chance of precipitation55%
Record high62° (1969)
Record low26° (1978)
Sun, 1550° / 39°0.26
50 °
Fern Heath, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.26 in
Chance of precipitation68%
Record high60° (2021)
Record low27° (2014)
Mon, 1648° / 40°0.25
48 °
Fern Heath, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low40°
Average precipitation0.25 in
Chance of precipitation70%
Record high60° (1965)
Record low26° (2014)
Tue, 1748° / 39°0.28
48 °
Fern Heath, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.28 in
Chance of precipitation67%
Record high62° (1995)
Record low26° (1961)
Wed, 1847° / 38°0.19
47 °
Fern Heath, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.19 in
Chance of precipitation55%
Record high57° (1965)
Record low25° (1985)
Thu, 1947° / 38°0.32
47 °
Fern Heath, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.32 in
Chance of precipitation70%
Record high59° (1987)
Record low26° (1977)
Fri, 2048° / 38°0.25
48 °
Fern Heath, Friday, 20 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.25 in
Chance of precipitation57%
Record high60° (2002)
Record low23° (1985)
Sat, 2146° / 36°0.26
46 °
Fern Heath, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.26 in
Chance of precipitation53%
Record high58° (2002)
Record low17° (1977)
Sun, 2246° / 36°0.28
46 °
Fern Heath, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.28 in
Chance of precipitation63%
Record high65° (2017)
Record low16° (1985)
Mon, 2346° / 36°0.35
46 °
Fern Heath, Monday, 23 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.35 in
Chance of precipitation70%
Record high62° (2017)
Record low0° (1985)
Tue, 2446° / 37°0.35
46 °
Fern Heath, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.35 in
Chance of precipitation68%
Record high56° (1995)
Record low8° (1985)
Wed, 2545° / 37°0.38
45 °
Fern Heath, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high45°
Average low37°
Average precipitation0.38 in
Chance of precipitation70%
Record high55° (1977)
Record low13° (1985)
Thu, 2646° / 36°0.22
46 °
Fern Heath, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.22 in
Chance of precipitation57%
Record high58° (2017)
Record low24° (1993)
Fri, 2746° / 37°0.28
46 °
Fern Heath, Friday, 27 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.28 in
Chance of precipitation67%
Record high55° (2018)
Record low22° (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 Fern Heath, 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 Fern Heath, 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.