Monthly outlook for Fern Heath, WA: average high 60°, average low 45.9°. That is 2.9° above the climate normal for October. Precipitation is expected on 4 days (about 2.0 inches), against a normal of 8 days and 3.5 inches. The warmest day looks like 21 October (66.2°), the coolest 24 October (40.8°).
60°/45.9°
Average high / low
+2.9°
Above normal
4 / 8
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
60.5°
56°
+2.5°
29 October – 7 November
59.3°
52.5°
+3.8°
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° / 45°0
64 °
Fern Heath, Tuesday, 20 October
Clear. High 64°, low 45°.
Pressure30.06 inHg
Wind11.2 mph N
Humidity66%
Visibility6.2 mi
Dew point47°
Wed, 2166° / 42°0
66 °
Fern Heath, Wednesday, 21 October
Mostly clear. High 66°, low 42°.
Pressure29.97 inHg
Wind1.2 mph NE
Humidity62%
Visibility0.4 mi
Dew point45°
Thu, 2260° / 45°0.03
60 °
Fern Heath, Thursday, 22 October
Light rain. High 60°, low 45°.
Pressure29.94 inHg
Wind1.5 mph N
Humidity56%
Visibility6.2 mi
Dew point41°
Fri, 2356° / 45°0.02
56 °
Fern Heath, Friday, 23 October
Light rain. High 56°, low 45°.
Pressure30.30 inHg
Wind3.5 mph S
Humidity84%
Visibility6.2 mi
Dew point45°
Sat, 2448° / 41°0.35
48 °
Fern Heath, Saturday, 24 October
Rain. High 48°, low 41°.
Pressure30.06 inHg
Wind4.2 mph SE
Humidity82%
Visibility—
Dew point40°
Sun, 2562° / 44°0.11
62 °
Fern Heath, Sunday, 25 October
Light rain. High 62°, low 44°.
Pressure30.18 inHg
Wind4 mph N
Humidity59%
Visibility—
Dew point39°
Mon, 2661° / 43°0
61 °
Fern Heath, Monday, 26 October
Overcast. High 61°, low 43°.
Pressure30.21 inHg
Wind7.7 mph N
Humidity49%
Visibility—
Dew point35°
Tue, 2763° / 46°0
63 °
Fern Heath, Tuesday, 27 October
Clear. High 63°, low 46°.
Pressure30.15 inHg
Wind6.8 mph N
Humidity58%
Visibility—
Dew point40°
Wed, 2863° / 45°0
63 °
Fern Heath, Wednesday, 28 October
Overcast. High 63°, low 45°.
Pressure30.00 inHg
Wind3.9 mph N
Humidity51%
Visibility—
Dew point36°
Thu, 2962° / 47°0
62 °
Fern Heath, Thursday, 29 October
Overcast. High 62°, low 47°.
Pressure29.94 inHg
Wind1.8 mph N
Humidity49%
Visibility—
Dew point35°
Fri, 3060° / 49°0
60 °
Fern Heath, Friday, 30 October
Overcast. High 60°, low 49°.
Pressure29.97 inHg
Wind3.4 mph N
Humidity53%
Visibility—
Dew point38°
Sat, 3156° / 50°0
56 °
Fern Heath, Saturday, 31 October
Overcast. High 56°, low 50°.
Pressure30.12 inHg
Wind2.7 mph S
Humidity58%
Visibility—
Dew point39°
Sun, 0160° / 47°0
60 °
Fern Heath, Sunday, 1 November
Overcast. High 60°, low 47°.
Pressure30.06 inHg
Wind4.8 mph N
Humidity64%
Visibility—
Dew point42°
Mon, 0262° / 49°1.1
62 °
Fern Heath, Monday, 2 November
Rain. High 62°, low 49°.
Pressure29.53 inHg
Wind16.2 mph SW
Humidity92%
Visibility—
Dew point50°
Tue, 0357° / 49°0.43
57 °
Fern Heath, Tuesday, 3 November
Rain. High 57°, low 49°.
Pressure29.83 inHg
Wind10.1 mph SW
Humidity72%
Visibility—
Dew point44°
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.