Monthly outlook for Fern Heath, WA: average high 60.7°, average low 46.4°. That is 3.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.9 inches), against a normal of 8 days and 3.5 inches. The warmest day looks like 21 October (66.4°), the coolest 24 October (38.3°).
60.7°/46.4°
Average high / low
+3.3°
Above normal
1 / 8
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
61.5°
56°
+3.1°
29 October – 7 November
59.3°
52.5°
+3.7°
8 November – 17 November
at normal
50°
—
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).
Tue, 2064° / 46°0
64 °
Fern Heath, Tuesday, 20 October
Clear. High 64°, low 46°.
Pressure30.06 inHg
Wind10.3 mph N
Humidity66%
Visibility6.2 mi
Dew point47°
Wed, 2166° / 45°0
66 °
Fern Heath, Wednesday, 21 October
Clear. High 66°, low 45°.
Pressure29.97 inHg
Wind1.4 mph NE
Humidity64%
Visibility6.2 mi
Dew point46°
Thu, 2261° / 45°0
61 °
Fern Heath, Thursday, 22 October
Clear. High 61°, low 45°.
Pressure29.94 inHg
Wind2 mph N
Humidity59%
Visibility6.2 mi
Dew point43°
Fri, 2357° / 46°0
57 °
Fern Heath, Friday, 23 October
Partly cloudy. High 57°, low 46°.
Pressure30.30 inHg
Wind3.5 mph N
Humidity62%
Visibility6.2 mi
Dew point41°
Sat, 2453° / 38°0
53 °
Fern Heath, Saturday, 24 October
Overcast. High 53°, low 38°.
Pressure30.24 inHg
Wind7 mph N
Humidity86%
Visibility—
Dew point42°
Sun, 2562° / 47°0
62 °
Fern Heath, Sunday, 25 October
Overcast. High 62°, low 47°.
Pressure30.18 inHg
Wind7 mph NE
Humidity70%
Visibility—
Dew point43°
Mon, 2663° / 44°0
63 °
Fern Heath, Monday, 26 October
Mostly clear. High 63°, low 44°.
Pressure30.18 inHg
Wind8.1 mph N
Humidity54%
Visibility—
Dew point38°
Tue, 2763° / 47°0
63 °
Fern Heath, Tuesday, 27 October
Overcast. High 63°, low 47°.
Pressure30.09 inHg
Wind4.5 mph N
Humidity44%
Visibility—
Dew point33°
Wed, 2864° / 47°0
64 °
Fern Heath, Wednesday, 28 October
Overcast. High 64°, low 47°.
Pressure29.97 inHg
Wind5.3 mph SW
Humidity41%
Visibility—
Dew point31°
Thu, 2961° / 46°0
61 °
Fern Heath, Thursday, 29 October
Partly cloudy. High 61°, low 46°.
Pressure30.00 inHg
Wind5.2 mph S
Humidity81%
Visibility—
Dew point46°
Fri, 3061° / 45°0
61 °
Fern Heath, Friday, 30 October
Overcast. High 61°, low 45°.
Pressure29.85 inHg
Wind4.6 mph SW
Humidity71%
Visibility—
Dew point43°
Sat, 3155° / 47°0.01
55 °
Fern Heath, Saturday, 31 October
Light rain. High 55°, low 47°.
Pressure29.97 inHg
Wind3.5 mph S
Humidity63%
Visibility—
Dew point40°
Sun, 0158° / 49°0.01
58 °
Fern Heath, Sunday, 1 November
Light rain. High 58°, low 49°.
Pressure30.06 inHg
Wind3.3 mph S
Humidity51%
Visibility—
Dew point38°
Mon, 0261° / 54°0.84
61 °
Fern Heath, Monday, 2 November
Rain. High 61°, low 54°.
Pressure30.09 inHg
Wind8 mph SW
Humidity90%
Visibility—
Dew point53°
Tue, 0360° / 53°0.04
60 °
Fern Heath, Tuesday, 3 November
Light rain. High 60°, low 53°.
Pressure29.88 inHg
Wind3.2 mph N
Humidity82%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0453° / 42°0.32
53 °
Fern Heath, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.32 in
Chance of precipitation60%
Record high66° (1980)
Record low27° (2003)
Thu, 0552° / 41°0.19
52 °
Fern Heath, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.19 in
Chance of precipitation62%
Record high64° (1997)
Record low25° (2003)
Fri, 0651° / 41°0.31
51 °
Fern Heath, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.31 in
Chance of precipitation60%
Record high60° (1999)
Record low26° (2003)
Sat, 0751° / 41°0.28
51 °
Fern Heath, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.28 in
Chance of precipitation68%
Record high62° (2016)
Record low28° (2003)
Sun, 0851° / 40°0.2
51 °
Fern Heath, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.2 in
Chance of precipitation53%
Record high65° (2016)
Record low30° (2020)
Mon, 0950° / 40°0.24
50 °
Fern Heath, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.24 in
Chance of precipitation67%
Record high60° (1976)
Record low28° (2020)
Tue, 1051° / 40°0.2
51 °
Fern Heath, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.2 in
Chance of precipitation52%
Record high63° (2016)
Record low25° (1986)
Wed, 1151° / 40°0.28
51 °
Fern Heath, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.28 in
Chance of precipitation57%
Record high62° (1996)
Record low26° (1985)
Thu, 1250° / 40°0.3
50 °
Fern Heath, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.3 in
Chance of precipitation63%
Record high60° (1990)
Record low24° (1985)
Fri, 1350° / 40°0.3
50 °
Fern Heath, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.3 in
Chance of precipitation60%
Record high62° (1967)
Record low26° (1978)
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)
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.