Monthly outlook for Walla Walla, WA: average high 60.5°, average low 45.1°. That is 1.5° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 6 days and 1.6 inches. The warmest day looks like 16 October (75.7°), the coolest 26 October (39.1°).
60.5°/45.1°
Average high / low
+1.5°
Above normal
3 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
65°
59.6°
+3°
25 October – 3 November
53°
53.6°
-0.3°
4 November – 13 November
at normal
49.9°
—
October records over 66 years
88.3°2 October 1975All-time high
10.6°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Kooskooskie (11 mi).
Fri, 1676° / 42°0
76 °
Walla Walla, Friday, 16 October
Mostly clear. High 76°, low 42°.
Pressure30.30 inHg
Wind1.4 mph W
Humidity30%
Visibility6.2 mi
Dew point34°
Sat, 1771° / 49°0
71 °
Walla Walla, Saturday, 17 October
Mostly clear. High 71°, low 49°.
Pressure30.15 inHg
Wind9.7 mph W
Humidity37%
Visibility6.2 mi
Dew point42°
Sun, 1867° / 44°0
67 °
Walla Walla, Sunday, 18 October
Clear. High 67°, low 44°.
Pressure30.06 inHg
Wind2.4 mph W
Humidity33%
Visibility6.2 mi
Dew point30°
Mon, 1964° / 48°0
64 °
Walla Walla, Monday, 19 October
Overcast. High 64°, low 48°.
Pressure29.88 inHg
Wind3.8 mph W
Humidity33%
Visibility—
Dew point29°
Tue, 2065° / 47°0
65 °
Walla Walla, Tuesday, 20 October
Overcast. High 65°, low 47°.
Pressure30.03 inHg
Wind3.3 mph SW
Humidity41%
Visibility—
Dew point32°
Wed, 2162° / 50°0.18
62 °
Walla Walla, Wednesday, 21 October
Light rain. High 62°, low 50°.
Pressure29.83 inHg
Wind7.1 mph S
Humidity75%
Visibility—
Dew point49°
Thu, 2261° / 50°0
61 °
Walla Walla, Thursday, 22 October
Overcast. High 61°, low 50°.
Pressure30.00 inHg
Wind20.4 mph SW
Humidity46%
Visibility—
Dew point37°
Fri, 2360° / 45°0
60 °
Walla Walla, Friday, 23 October
Clear. High 60°, low 45°.
Pressure30.30 inHg
Wind15.9 mph SW
Humidity41%
Visibility—
Dew point30°
Sat, 2454° / 47°0.02
54 °
Walla Walla, Saturday, 24 October
Light rain. High 54°, low 47°.
Pressure30.21 inHg
Wind10.7 mph S
Humidity54%
Visibility—
Dew point37°
Sun, 2552° / 43°0.04
52 °
Walla Walla, Sunday, 25 October
Light rain. High 52°, low 43°.
Pressure30.06 inHg
Wind5.9 mph NW
Humidity68%
Visibility—
Dew point36°
Mon, 2650° / 39°0
50 °
Walla Walla, Monday, 26 October
Partly cloudy. High 50°, low 39°.
Pressure29.97 inHg
Wind5.7 mph SW
Humidity42%
Visibility—
Dew point24°
Tue, 2756° / 42°0
56 °
Walla Walla, Tuesday, 27 October
Overcast. High 56°, low 42°.
Pressure29.83 inHg
Wind14.2 mph SW
Humidity29%
Visibility—
Dew point21°
Wed, 2854° / 46°0.26
54 °
Walla Walla, Wednesday, 28 October
Rain. High 54°, low 46°.
Pressure29.91 inHg
Wind21.5 mph SW
Humidity59%
Visibility—
Dew point37°
Thu, 2950° / 41°0.02
50 °
Walla Walla, Thursday, 29 October
Light rain. High 50°, low 41°.
Pressure30.06 inHg
Wind15.9 mph SW
Humidity52%
Visibility—
Dew point30°
Fri, 3055° / 45°0.04
55 °
Walla Walla, Friday, 30 October
Light rain. High 55°, low 45°.
Pressure30.18 inHg
Wind11.3 mph S
Humidity51%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3152° / 38°0.17
52 °
Walla Walla, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.17 in
Chance of precipitation52%
Record high71° (1988)
Record low18° (2002)
Sun, 0152° / 37°0.18
52 °
Walla Walla, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.18 in
Chance of precipitation48%
Record high73° (1965)
Record low18° (2002)
Mon, 0252° / 37°0.11
52 °
Walla Walla, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.11 in
Chance of precipitation43%
Record high66° (1981)
Record low8° (1991)
Tue, 0353° / 37°0.07
53 °
Walla Walla, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.07 in
Chance of precipitation30%
Record high67° (1975)
Record low10° (1973)
Wed, 0453° / 38°0.17
53 °
Walla Walla, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.17 in
Chance of precipitation52%
Record high69° (1975)
Record low19° (1973)
Thu, 0552° / 37°0.17
52 °
Walla Walla, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.17 in
Chance of precipitation52%
Record high67° (1975)
Record low20° (2003)
Fri, 0651° / 37°0.17
51 °
Walla Walla, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.17 in
Chance of precipitation57%
Record high68° (2012)
Record low21° (2003)
Sat, 0751° / 37°0.19
51 °
Walla Walla, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.19 in
Chance of precipitation50%
Record high66° (1999)
Record low25° (2003)
Sun, 0849° / 36°0.13
49 °
Walla Walla, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.13 in
Chance of precipitation47%
Record high66° (2016)
Record low22° (1994)
Mon, 0949° / 36°0.11
49 °
Walla Walla, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation52%
Record high64° (2016)
Record low19° (1986)
Tue, 1049° / 36°0.1
49 °
Walla Walla, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.1 in
Chance of precipitation45%
Record high64° (1989)
Record low3° (1986)
Wed, 1149° / 35°0.13
49 °
Walla Walla, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.13 in
Chance of precipitation43%
Record high67° (1990)
Record low3° (2000)
Thu, 1249° / 36°0.17
49 °
Walla Walla, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.17 in
Chance of precipitation42%
Record high72° (1999)
Record low4° (1985)
Fri, 1348° / 35°0.15
48 °
Walla Walla, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.15 in
Chance of precipitation57%
Record high70° (1999)
Record low5° (1985)
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 Walla Walla, 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 Walla Walla, 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.