Monthly outlook for Twin, WA: average high 54.3°, average low 50°. That is 0.3° below the climate normal for October. Precipitation is expected on 7 days (about 3.1 inches), against a normal of 8 days and 3.8 inches. The warmest day looks like 16 October (59.3°), the coolest 12 October (46°).
54.3°/50°
Average high / low
−0.3°
Below normal
7 / 8
Wet days / normal
3.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
55.5°
55.9°
-0.2°
21 October – 30 October
52.4°
52.6°
-0.1°
31 October – 9 November
at normal
50.3°
—
October records over 66 years
76.5°1 October 1987All-time high
23.2°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Snug Harbor (13 mi).
Mon, 1256° / 46°0
56 °
Twin, Monday, 12 October
Clear. High 56°, low 46°.
Pressure30.06 inHg
Wind1.7 mph NW
Humidity77%
Visibility6.2 mi
Dew point46°
Tue, 1354° / 47°0
54 °
Twin, Tuesday, 13 October
Overcast. High 54°, low 47°.
Pressure30.18 inHg
Wind3.6 mph N
Humidity76%
Visibility6.2 mi
Dew point46°
Wed, 1455° / 53°0.06
55 °
Twin, Wednesday, 14 October
Light rain. High 55°, low 53°.
Pressure30.30 inHg
Wind8.3 mph E
Humidity88%
Visibility4.5 mi
Dew point51°
Thu, 1557° / 53°0
57 °
Twin, Thursday, 15 October
Clear. High 57°, low 53°.
Pressure30.33 inHg
Wind12.8 mph SE
Humidity84%
Visibility6.2 mi
Dew point50°
Fri, 1659° / 55°0.02
59 °
Twin, Friday, 16 October
Light rain. High 59°, low 55°.
Pressure30.06 inHg
Wind16.7 mph NW
Humidity74%
Visibility—
Dew point50°
Sat, 1757° / 51°0.09
57 °
Twin, Saturday, 17 October
Light rain. High 57°, low 51°.
Pressure30.12 inHg
Wind11.1 mph W
Humidity84%
Visibility—
Dew point51°
Sun, 1854° / 51°0.02
54 °
Twin, Sunday, 18 October
Light rain. High 54°, low 51°.
Pressure30.06 inHg
Wind8.3 mph W
Humidity77%
Visibility—
Dew point47°
Mon, 1952° / 50°0.52
52 °
Twin, Monday, 19 October
Rain. High 52°, low 50°.
Pressure29.65 inHg
Wind11.5 mph W
Humidity90%
Visibility—
Dew point48°
Tue, 2052° / 50°0.06
52 °
Twin, Tuesday, 20 October
Light rain. High 52°, low 50°.
Pressure30.12 inHg
Wind19.3 mph W
Humidity74%
Visibility—
Dew point44°
Wed, 2151° / 49°0.55
51 °
Twin, Wednesday, 21 October
Rain. High 51°, low 49°.
Pressure30.12 inHg
Wind9.2 mph E
Humidity94%
Visibility—
Dew point47°
Thu, 2252° / 51°1.29
52 °
Twin, Thursday, 22 October
Heavy rain. High 52°, low 51°.
Pressure30.03 inHg
Wind9.6 mph E
Humidity98%
Visibility—
Dew point52°
Fri, 2353° / 50°0.56
53 °
Twin, Friday, 23 October
Rain. High 53°, low 50°.
Pressure30.03 inHg
Wind12.3 mph W
Humidity80%
Visibility—
Dew point45°
Sat, 2451° / 48°0
51 °
Twin, Saturday, 24 October
Clear. High 51°, low 48°.
Pressure30.09 inHg
Wind5 mph E
Humidity78%
Visibility—
Dew point43°
Sun, 2553° / 49°0.01
53 °
Twin, Sunday, 25 October
Light rain. High 53°, low 49°.
Pressure30.09 inHg
Wind10.2 mph E
Humidity84%
Visibility—
Dew point47°
Mon, 2654° / 50°0
54 °
Twin, Monday, 26 October
Partly cloudy. High 54°, low 50°.
Pressure30.15 inHg
Wind10.1 mph E
Humidity78%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2752° / 45°0.25
52 °
Twin, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low45°
Average precipitation0.25 in
Chance of precipitation53%
Record high64° (1968)
Record low32° (1971)
Wed, 2852° / 44°0.32
52 °
Twin, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.32 in
Chance of precipitation62%
Record high64° (2017)
Record low31° (2023)
Thu, 2951° / 44°0.2
51 °
Twin, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.2 in
Chance of precipitation52%
Record high65° (1962)
Record low33° (1991)
Fri, 3051° / 44°0.33
51 °
Twin, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.33 in
Chance of precipitation65%
Record high60° (1962)
Record low32° (1991)
Sat, 3151° / 44°0.35
51 °
Twin, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.35 in
Chance of precipitation62%
Record high60° (1962)
Record low23° (1984)
Sun, 0151° / 44°0.29
51 °
Twin, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.29 in
Chance of precipitation50%
Record high62° (1962)
Record low33° (1984)
Mon, 0251° / 44°0.28
51 °
Twin, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.28 in
Chance of precipitation60%
Record high64° (1962)
Record low31° (1994)
Tue, 0351° / 44°0.33
51 °
Twin, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.33 in
Chance of precipitation65%
Record high60° (1970)
Record low32° (2017)
Wed, 0451° / 44°0.36
51 °
Twin, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.36 in
Chance of precipitation68%
Record high61° (2012)
Record low32° (1973)
Thu, 0550° / 43°0.28
50 °
Twin, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low43°
Average precipitation0.28 in
Chance of precipitation70%
Record high59° (2020)
Record low31° (1973)
Fri, 0650° / 43°0.38
50 °
Twin, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low43°
Average precipitation0.38 in
Chance of precipitation73%
Record high57° (2006)
Record low24° (2017)
Sat, 0749° / 43°0.34
49 °
Twin, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low43°
Average precipitation0.34 in
Chance of precipitation77%
Record high58° (2004)
Record low29° (2017)
Sun, 0849° / 42°0.26
49 °
Twin, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.26 in
Chance of precipitation62%
Record high62° (2016)
Record low31° (2022)
Mon, 0949° / 42°0.4
49 °
Twin, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.4 in
Chance of precipitation72%
Record high61° (2025)
Record low30° (2022)
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 Twin, 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 Twin, 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.