Monthly outlook for Valley, WA: average high 56°, average low 38.8°. That is 1.7° below the climate normal for October. Precipitation is expected on 6 days (about 2.3 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 8 October (76.5°), the coolest 12 October (29.7°).
56°/38.8°
Average high / low
−1.7°
Below normal
6 / 4
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
58.1°
60.5°
-1.3°
18 October – 27 October
52.6°
55.1°
-1.4°
28 October – 6 November
at normal
48.4°
—
October records over 66 years
88.5°1 October 1992All-time high
11.7°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Chewelah (8 mi).
Fri, 0968° / 41°0
68 °
Valley, Friday, 9 October
Overcast. High 68°, low 41°.
Pressure29.59 inHg
Wind3.4 mph S
Humidity56%
Visibility6.2 mi
Dew point42°
Sat, 1055° / 38°0.03
55 °
Valley, Saturday, 10 October
Light rain. High 55°, low 38°.
Pressure29.80 inHg
Wind2.1 mph S
Humidity55%
Visibility6.0 mi
Dew point35°
Sun, 1152° / 33°0
52 °
Valley, Sunday, 11 October
Clear. High 52°, low 33°.
Pressure30.03 inHg
Wind7.2 mph N
Humidity49%
Visibility6.2 mi
Dew point21°
Mon, 1255° / 30°0
55 °
Valley, Monday, 12 October
Clear. High 55°, low 30°.
Pressure30.06 inHg
Wind2.9 mph NW
Humidity51%
Visibility—
Dew point29°
Tue, 1359° / 35°0.14
59 °
Valley, Tuesday, 13 October
Rain. High 59°, low 35°.
Pressure30.00 inHg
Wind3.5 mph SE
Humidity46%
Visibility—
Dew point30°
Wed, 1445° / 41°0.37
45 °
Valley, Wednesday, 14 October
Light rain. High 45°, low 41°.
Pressure29.71 inHg
Wind3.4 mph NE
Humidity95%
Visibility—
Dew point42°
Thu, 1553° / 39°0
53 °
Valley, Thursday, 15 October
Partly cloudy. High 53°, low 39°.
Pressure30.33 inHg
Wind2.8 mph SE
Humidity70%
Visibility—
Dew point39°
Fri, 1659° / 40°0
59 °
Valley, Friday, 16 October
Clear. High 59°, low 40°.
Pressure30.42 inHg
Wind4.3 mph S
Humidity51%
Visibility—
Dew point35°
Sat, 1760° / 39°0
60 °
Valley, Saturday, 17 October
Partly cloudy. High 60°, low 39°.
Pressure30.30 inHg
Wind3 mph S
Humidity50%
Visibility—
Dew point34°
Sun, 1861° / 40°0
61 °
Valley, Sunday, 18 October
Partly cloudy. High 61°, low 40°.
Pressure30.18 inHg
Wind4.3 mph S
Humidity49%
Visibility—
Dew point35°
Mon, 1963° / 41°0
63 °
Valley, Monday, 19 October
Overcast. High 63°, low 41°.
Pressure30.18 inHg
Wind3 mph S
Humidity49%
Visibility—
Dew point36°
Tue, 2058° / 44°0.08
58 °
Valley, Tuesday, 20 October
Light rain. High 58°, low 44°.
Pressure30.06 inHg
Wind3.6 mph SE
Humidity56%
Visibility—
Dew point37°
Wed, 2156° / 39°0.62
56 °
Valley, Wednesday, 21 October
Rain. High 56°, low 39°.
Pressure29.47 inHg
Wind11.1 mph W
Humidity91%
Visibility—
Dew point46°
Thu, 2240° / 37°0.28
40 °
Valley, Thursday, 22 October
Snow. High 40°, low 37°.
Pressure29.56 inHg
Wind2.8 mph NE
Humidity98%
Visibility—
Dew point39°
Fri, 2338° / 37°0.73
38 °
Valley, Friday, 23 October
Snow. High 38°, low 37°.
Pressure29.71 inHg
Wind2.7 mph NE
Humidity100%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2455° / 37°0.06
55 °
Valley, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high55°
Average low37°
Average precipitation0.06 in
Chance of precipitation20%
Record high68° (1992)
Record low17° (2020)
Sun, 2554° / 37°0.08
54 °
Valley, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.08 in
Chance of precipitation37%
Record high67° (1965)
Record low13° (2020)
Mon, 2652° / 37°0.07
52 °
Valley, Monday, 26 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation40%
Record high68° (1965)
Record low18° (2020)
Tue, 2751° / 36°0.07
51 °
Valley, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.07 in
Chance of precipitation38%
Record high66° (1965)
Record low23° (2020)
Wed, 2850° / 36°0.08
50 °
Valley, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.08 in
Chance of precipitation38%
Record high63° (1974)
Record low15° (1991)
Thu, 2950° / 35°0.08
50 °
Valley, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.08 in
Chance of precipitation33%
Record high65° (1962)
Record low12° (1991)
Fri, 3049° / 35°0.07
49 °
Valley, Friday, 30 October
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation30%
Record high65° (1987)
Record low14° (1972)
Sat, 3149° / 35°0.09
49 °
Valley, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.09 in
Chance of precipitation40%
Record high64° (1988)
Record low12° (1984)
Sun, 0149° / 34°0.09
49 °
Valley, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.09 in
Chance of precipitation42%
Record high64° (1988)
Record low12° (1984)
Mon, 0248° / 35°0.08
48 °
Valley, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.08 in
Chance of precipitation27%
Record high62° (1981)
Record low21° (1961)
Tue, 0348° / 35°0.06
48 °
Valley, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.06 in
Chance of precipitation28%
Record high61° (1975)
Record low22° (2002)
Wed, 0448° / 35°0.12
48 °
Valley, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.12 in
Chance of precipitation42%
Record high65° (1975)
Record low18° (2017)
Thu, 0547° / 34°0.07
47 °
Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation38%
Record high61° (1975)
Record low14° (1961)
Fri, 0646° / 34°0.09
46 °
Valley, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.09 in
Chance of precipitation47%
Record high58° (2010)
Record low16° (1994)
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 Valley, 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 Valley, 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.