Monthly outlook for Arzina, WA: average high 48.4°, average low 32.2°. That is 0.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 22 October (61°), the coolest 3 November (25.9°).
48.4°/32.2°
Average high / low
+0.4°
Above normal
4 / 5
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
50.3°
49.4°
+0.5°
1 November – 10 November
45.3°
43.7°
+0.9°
11 November – 20 November
at normal
39.8°
—
October records over 66 years
86.2°1 October 1992All-time high
-0.4°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Inchelium (9 mi).
Fri, 2357° / 34°0.07
57 °
Arzina, Friday, 23 October
Light rain. High 57°, low 34°.
Pressure30.06 inHg
Wind6.2 mph N
Humidity38%
Visibility6.2 mi
Dew point22°
Sat, 2453° / 28°0
53 °
Arzina, Saturday, 24 October
Overcast. High 53°, low 28°.
Pressure30.24 inHg
Wind2 mph E
Humidity55%
Visibility6.2 mi
Dew point30°
Sun, 2554° / 39°0
54 °
Arzina, Sunday, 25 October
Overcast. High 54°, low 39°.
Pressure30.09 inHg
Wind4 mph N
Humidity52%
Visibility6.2 mi
Dew point31°
Mon, 2658° / 42°0
58 °
Arzina, Monday, 26 October
Partly cloudy. High 58°, low 42°.
Pressure30.00 inHg
Wind4 mph NE
Humidity45%
Visibility6.2 mi
Dew point32°
Tue, 2756° / 41°0
56 °
Arzina, Tuesday, 27 October
Mostly clear. High 56°, low 41°.
Pressure30.06 inHg
Wind2.3 mph S
Humidity75%
Visibility—
Dew point41°
Wed, 2843° / 34°0.11
43 °
Arzina, Wednesday, 28 October
Snow. High 43°, low 34°.
Pressure30.33 inHg
Wind5.2 mph N
Humidity83%
Visibility—
Dew point38°
Thu, 2945° / 31°0.02
45 °
Arzina, Thursday, 29 October
Light snow. High 45°, low 31°.
Pressure30.00 inHg
Wind7.7 mph NE
Humidity63%
Visibility—
Dew point28°
Fri, 3036° / 32°0.23
36 °
Arzina, Friday, 30 October
Snow. High 36°, low 32°.
Pressure30.03 inHg
Wind3.6 mph S
Humidity97%
Visibility—
Dew point34°
Sat, 3138° / 27°0.02
38 °
Arzina, Saturday, 31 October
Light snow. High 38°, low 27°.
Pressure30.09 inHg
Wind3.6 mph S
Humidity94%
Visibility—
Dew point35°
Sun, 0138° / 29°0
38 °
Arzina, Sunday, 1 November
Overcast. High 38°, low 29°.
Pressure30.39 inHg
Wind1.7 mph NW
Humidity85%
Visibility—
Dew point31°
Mon, 0243° / 26°0
43 °
Arzina, Monday, 2 November
Mostly clear. High 43°, low 26°.
Pressure30.62 inHg
Wind3.1 mph N
Humidity75%
Visibility—
Dew point29°
Tue, 0344° / 26°0
44 °
Arzina, Tuesday, 3 November
Overcast. High 44°, low 26°.
Pressure30.71 inHg
Wind3 mph NW
Humidity73%
Visibility—
Dew point29°
Wed, 0447° / 29°0
47 °
Arzina, Wednesday, 4 November
Overcast. High 47°, low 29°.
Pressure30.53 inHg
Wind2.9 mph NW
Humidity73%
Visibility—
Dew point31°
Thu, 0550° / 30°0
50 °
Arzina, Thursday, 5 November
Clear. High 50°, low 30°.
Pressure30.36 inHg
Wind3.2 mph N
Humidity65%
Visibility—
Dew point30°
Fri, 0651° / 32°0
51 °
Arzina, Friday, 6 November
Partly cloudy. High 51°, low 32°.
Pressure30.27 inHg
Wind3 mph N
Humidity65%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0743° / 31°0.11
43 °
Arzina, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.11 in
Chance of precipitation38%
Record high55° (2006)
Record low15° (2017)
Sun, 0843° / 31°0.06
43 °
Arzina, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.06 in
Chance of precipitation23%
Record high57° (2016)
Record low20° (1986)
Mon, 0942° / 30°0.08
42 °
Arzina, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.08 in
Chance of precipitation40%
Record high56° (2016)
Record low2° (1986)
Tue, 1041° / 31°0.07
41 °
Arzina, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.07 in
Chance of precipitation33%
Record high55° (1989)
Record low10° (1986)
Wed, 1142° / 29°0.08
42 °
Arzina, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.08 in
Chance of precipitation37%
Record high55° (1990)
Record low-1° (1985)
Thu, 1242° / 30°0.08
42 °
Arzina, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.08 in
Chance of precipitation37%
Record high56° (1999)
Record low0° (1985)
Fri, 1341° / 30°0.12
41 °
Arzina, Friday, 13 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.12 in
Chance of precipitation42%
Record high53° (1967)
Record low12° (1985)
Sat, 1441° / 30°0.07
41 °
Arzina, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.07 in
Chance of precipitation28%
Record high59° (2021)
Record low10° (1964)
Sun, 1540° / 30°0.09
40 °
Arzina, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low30°
Average precipitation0.09 in
Chance of precipitation40%
Record high56° (2021)
Record low14° (2000)
Mon, 1640° / 30°0.11
40 °
Arzina, Monday, 16 November
Climate normal for this date — 60-year average.
Average high40°
Average low30°
Average precipitation0.11 in
Chance of precipitation45%
Record high52° (1999)
Record low13° (2000)
Tue, 1739° / 30°0.12
39 °
Arzina, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high39°
Average low30°
Average precipitation0.12 in
Chance of precipitation47%
Record high50° (2025)
Record low13° (2000)
Wed, 1838° / 28°0.07
38 °
Arzina, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high38°
Average low28°
Average precipitation0.07 in
Chance of precipitation35%
Record high48° (2025)
Record low10° (1994)
Thu, 1938° / 27°0.11
38 °
Arzina, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.11 in
Chance of precipitation43%
Record high47° (2013)
Record low2° (1985)
Fri, 2038° / 28°0.12
38 °
Arzina, Friday, 20 November
Climate normal for this date — 60-year average.
Average high38°
Average low28°
Average precipitation0.12 in
Chance of precipitation42%
Record high47° (2025)
Record low6° (1977)
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 Arzina, 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 Arzina, 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.