Monthly outlook for Spring Valley, WA: average high 59.1°, average low 41.2°. That is 0.9° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 16 October (75.2°), the coolest 13 October (31°).
59.1°/41.2°
Average high / low
+0.9°
Above normal
0 / 4
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
60.2°
58.7°
+0.8°
21 October – 30 October
57.2°
53.7°
+1.9°
31 October – 9 November
at normal
48.5°
—
October records over 66 years
85.5°2 October 1975All-time high
13.3°25 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Plaza (6 mi).
Mon, 1254° / 39°0.01
54 °
Spring Valley, Monday, 12 October
Light rain. High 54°, low 39°.
Pressure30.03 inHg
Wind1.9 mph E
Humidity49%
Visibility6.2 mi
Dew point29°
Tue, 1357° / 31°0
57 °
Spring Valley, Tuesday, 13 October
Overcast. High 57°, low 31°.
Pressure30.15 inHg
Wind2.9 mph SW
Humidity43%
Visibility6.2 mi
Dew point30°
Wed, 1460° / 35°0
60 °
Spring Valley, Wednesday, 14 October
Overcast. High 60°, low 35°.
Pressure30.24 inHg
Wind3.6 mph SW
Humidity36%
Visibility6.2 mi
Dew point29°
Thu, 1567° / 39°0
67 °
Spring Valley, Thursday, 15 October
Mostly clear. High 67°, low 39°.
Pressure30.45 inHg
Wind8.4 mph E
Humidity42%
Visibility—
Dew point33°
Fri, 1675° / 45°0
75 °
Spring Valley, Friday, 16 October
Clear. High 75°, low 45°.
Pressure30.21 inHg
Wind7.9 mph SE
Humidity30%
Visibility—
Dew point33°
Sat, 1768° / 51°0
68 °
Spring Valley, Saturday, 17 October
Overcast. High 68°, low 51°.
Pressure30.03 inHg
Wind17 mph SW
Humidity34%
Visibility—
Dew point34°
Sun, 1863° / 47°0
63 °
Spring Valley, Sunday, 18 October
Overcast. High 63°, low 47°.
Pressure30.03 inHg
Wind9.5 mph S
Humidity53%
Visibility—
Dew point39°
Mon, 1957° / 46°0
57 °
Spring Valley, Monday, 19 October
Light rain. High 57°, low 46°.
Pressure29.97 inHg
Wind16.9 mph SW
Humidity41%
Visibility—
Dew point31°
Tue, 2053° / 40°0
53 °
Spring Valley, Tuesday, 20 October
Mostly clear. High 53°, low 40°.
Pressure30.15 inHg
Wind13.9 mph SW
Humidity52%
Visibility—
Dew point31°
Wed, 2154° / 39°0
54 °
Spring Valley, Wednesday, 21 October
Overcast. High 54°, low 39°.
Pressure30.12 inHg
Wind8.6 mph SW
Humidity48%
Visibility—
Dew point30°
Thu, 2258° / 39°0
58 °
Spring Valley, Thursday, 22 October
Partly cloudy. High 58°, low 39°.
Pressure30.15 inHg
Wind5.7 mph E
Humidity46%
Visibility—
Dew point31°
Fri, 2357° / 44°0
57 °
Spring Valley, Friday, 23 October
Overcast. High 57°, low 44°.
Pressure30.06 inHg
Wind15.2 mph SW
Humidity42%
Visibility—
Dew point29°
Sat, 2458° / 43°0
58 °
Spring Valley, Saturday, 24 October
Overcast. High 58°, low 43°.
Pressure30.18 inHg
Wind7.4 mph W
Humidity50%
Visibility—
Dew point34°
Sun, 2557° / 39°0
57 °
Spring Valley, Sunday, 25 October
Overcast. High 57°, low 39°.
Pressure30.42 inHg
Wind4.8 mph E
Humidity43%
Visibility—
Dew point27°
Mon, 2659° / 42°0
59 °
Spring Valley, Monday, 26 October
Overcast. High 59°, low 42°.
Pressure30.18 inHg
Wind10.5 mph SW
Humidity36%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2752° / 36°0.06
52 °
Spring Valley, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.06 in
Chance of precipitation33%
Record high69° (1965)
Record low14° (2020)
Wed, 2852° / 36°0.06
52 °
Spring Valley, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.06 in
Chance of precipitation35%
Record high66° (2003)
Record low19° (2023)
Thu, 2951° / 36°0.07
51 °
Spring Valley, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.07 in
Chance of precipitation30%
Record high68° (1983)
Record low17° (2019)
Fri, 3050° / 35°0.06
50 °
Spring Valley, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.06 in
Chance of precipitation30%
Record high67° (2008)
Record low15° (2019)
Sat, 3150° / 36°0.09
50 °
Spring Valley, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.09 in
Chance of precipitation28%
Record high67° (1988)
Record low17° (1984)
Sun, 0150° / 35°0.09
50 °
Spring Valley, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation38%
Record high68° (1965)
Record low19° (2002)
Mon, 0250° / 35°0.09
50 °
Spring Valley, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation37%
Record high65° (1981)
Record low20° (1961)
Tue, 0350° / 35°0.04
50 °
Spring Valley, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation30%
Record high64° (1965)
Record low22° (1973)
Wed, 0449° / 36°0.12
49 °
Spring Valley, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation45%
Record high66° (1975)
Record low22° (2003)
Thu, 0548° / 34°0.08
48 °
Spring Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.08 in
Chance of precipitation40%
Record high64° (1975)
Record low17° (1973)
Fri, 0648° / 34°0.1
48 °
Spring Valley, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.1 in
Chance of precipitation48%
Record high64° (1999)
Record low17° (2003)
Sat, 0747° / 34°0.12
47 °
Spring Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.12 in
Chance of precipitation42%
Record high67° (1999)
Record low13° (2017)
Sun, 0847° / 33°0.06
47 °
Spring Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.06 in
Chance of precipitation30%
Record high65° (2016)
Record low22° (2022)
Mon, 0946° / 33°0.07
46 °
Spring Valley, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation38%
Record high60° (1989)
Record low19° (1986)
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 Spring 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 Spring 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.