Monthly outlook for Roslyn, WA: average high 43.2°, average low 29.7°. That is 4.2° below the climate normal for October. Precipitation is expected on 7 days (about 1.4 inches), against a normal of 8 days and 3.1 inches. The warmest day looks like 21 October (57.8°), the coolest 18 October (17°).
43.2°/29.7°
Average high / low
−4.2°
Below normal
7 / 8
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
47.6°
52.9°
-2.9°
27 October – 5 November
35.9°
47°
-6.1°
6 November – 15 November
at normal
43.3°
—
October records over 66 years
82.4°14 October 1991All-time high
12.4°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Cabin Creek (6 mi).
Sun, 1851° / 17°0
51 °
Roslyn, Sunday, 18 October
Overcast. High 51°, low 17°.
Pressure30.12 inHg
Wind2.8 mph SE
Humidity44%
Visibility6.2 mi
Dew point21°
Mon, 1949° / 33°0
49 °
Roslyn, Monday, 19 October
Overcast. High 49°, low 33°.
Pressure29.91 inHg
Wind3.2 mph W
Humidity46%
Visibility6.2 mi
Dew point28°
Tue, 2056° / 31°0
56 °
Roslyn, Tuesday, 20 October
Partly cloudy. High 56°, low 31°.
Pressure30.06 inHg
Wind4.2 mph SE
Humidity43%
Visibility—
Dew point30°
Wed, 2158° / 36°0
58 °
Roslyn, Wednesday, 21 October
Clear. High 58°, low 36°.
Pressure30.00 inHg
Wind2.1 mph E
Humidity44%
Visibility—
Dew point28°
Thu, 2251° / 34°0
51 °
Roslyn, Thursday, 22 October
Light rain. High 51°, low 34°.
Pressure29.94 inHg
Wind9.1 mph W
Humidity47%
Visibility—
Dew point29°
Fri, 2339° / 28°0.01
39 °
Roslyn, Friday, 23 October
Light snow. High 39°, low 28°.
Pressure30.15 inHg
Wind8.5 mph W
Humidity74%
Visibility—
Dew point28°
Sat, 2445° / 26°0
45 °
Roslyn, Saturday, 24 October
Partly cloudy. High 45°, low 26°.
Pressure30.30 inHg
Wind7 mph E
Humidity48%
Visibility—
Dew point20°
Sun, 2542° / 29°0.07
42 °
Roslyn, Sunday, 25 October
Snow. High 42°, low 29°.
Pressure30.15 inHg
Wind10.3 mph NW
Humidity83%
Visibility—
Dew point30°
Mon, 2637° / 32°0.37
37 °
Roslyn, Monday, 26 October
Snow. High 37°, low 32°.
Pressure30.03 inHg
Wind7.7 mph W
Humidity91%
Visibility—
Dew point34°
Tue, 2737° / 31°0.12
37 °
Roslyn, Tuesday, 27 October
Snow. High 37°, low 31°.
Pressure29.97 inHg
Wind7.9 mph W
Humidity87%
Visibility—
Dew point31°
Wed, 2831° / 30°0.37
31 °
Roslyn, Wednesday, 28 October
Snow. High 31°, low 30°.
Pressure29.83 inHg
Wind4.2 mph W
Humidity99%
Visibility—
Dew point31°
Thu, 2935° / 31°0.04
35 °
Roslyn, Thursday, 29 October
Snow. High 35°, low 31°.
Pressure30.03 inHg
Wind6.6 mph W
Humidity91%
Visibility—
Dew point31°
Fri, 3035° / 31°0.25
35 °
Roslyn, Friday, 30 October
Snow. High 35°, low 31°.
Pressure30.00 inHg
Wind7.9 mph W
Humidity98%
Visibility—
Dew point31°
Sat, 3140° / 27°0.01
40 °
Roslyn, Saturday, 31 October
Light rain. High 40°, low 27°.
Pressure30.21 inHg
Wind5.7 mph NW
Humidity83%
Visibility—
Dew point31°
Sun, 0137° / 30°0.15
37 °
Roslyn, Sunday, 1 November
Light rain. High 37°, low 30°.
Pressure30.12 inHg
Wind5.8 mph NW
Humidity79%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0247° / 34°0.17
47 °
Roslyn, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.17 in
Chance of precipitation53%
Record high59° (1981)
Record low17° (1973)
Tue, 0346° / 35°0.2
46 °
Roslyn, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.2 in
Chance of precipitation55%
Record high61° (1962)
Record low16° (1973)
Wed, 0447° / 35°0.35
47 °
Roslyn, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.35 in
Chance of precipitation63%
Record high62° (1976)
Record low21° (1977)
Thu, 0546° / 34°0.2
46 °
Roslyn, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.2 in
Chance of precipitation65%
Record high60° (2019)
Record low7° (1971)
Fri, 0645° / 35°0.3
45 °
Roslyn, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.3 in
Chance of precipitation60%
Record high63° (2012)
Record low18° (1971)
Sat, 0744° / 34°0.27
44 °
Roslyn, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.27 in
Chance of precipitation63%
Record high56° (1978)
Record low24° (2003)
Sun, 0844° / 33°0.19
44 °
Roslyn, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.19 in
Chance of precipitation57%
Record high60° (1976)
Record low22° (1977)
Mon, 0944° / 33°0.22
44 °
Roslyn, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.22 in
Chance of precipitation70%
Record high56° (1996)
Record low17° (1982)
Tue, 1043° / 33°0.19
43 °
Roslyn, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.19 in
Chance of precipitation55%
Record high56° (2016)
Record low12° (1986)
Wed, 1143° / 33°0.23
43 °
Roslyn, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.23 in
Chance of precipitation58%
Record high60° (1990)
Record low4° (1985)
Thu, 1243° / 33°0.28
43 °
Roslyn, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.28 in
Chance of precipitation65%
Record high58° (1990)
Record low8° (1985)
Fri, 1342° / 32°0.3
42 °
Roslyn, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.3 in
Chance of precipitation63%
Record high60° (1969)
Record low13° (1985)
Sat, 1442° / 32°0.23
42 °
Roslyn, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.23 in
Chance of precipitation53%
Record high62° (1969)
Record low8° (1985)
Sun, 1542° / 31°0.22
42 °
Roslyn, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.22 in
Chance of precipitation62%
Record high59° (2008)
Record low9° (2000)
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 Roslyn, 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 Roslyn, 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.