Monthly outlook for Walla Walla, WA: average high 63.8°, average low 45.8°. That is 2.6° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 16 October (76.8°), the coolest 13 October (34.3°).
63.8°/45.8°
Average high / low
+2.6°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
64°
60.3°
+2.1°
22 October – 31 October
63.5°
55.4°
+4.5°
1 November – 10 November
at normal
51°
—
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).
Tue, 1361° / 34°0
61 °
Walla Walla, Tuesday, 13 October
Partly cloudy. High 61°, low 34°.
Pressure30.18 inHg
Wind3.3 mph SW
Humidity33%
Visibility6.2 mi
Dew point28°
Wed, 1468° / 45°0
68 °
Walla Walla, Wednesday, 14 October
Mostly clear. High 68°, low 45°.
Pressure30.24 inHg
Wind4.6 mph W
Humidity31%
Visibility6.2 mi
Dew point33°
Thu, 1568° / 44°0
68 °
Walla Walla, Thursday, 15 October
Clear. High 68°, low 44°.
Pressure30.45 inHg
Wind1.5 mph W
Humidity42%
Visibility6.2 mi
Dew point37°
Fri, 1677° / 46°0
77 °
Walla Walla, Friday, 16 October
Clear. High 77°, low 46°.
Pressure30.24 inHg
Wind3.8 mph NW
Humidity33%
Visibility—
Dew point34°
Sat, 1772° / 51°0
72 °
Walla Walla, Saturday, 17 October
Overcast. High 72°, low 51°.
Pressure30.00 inHg
Wind8.5 mph SW
Humidity38%
Visibility—
Dew point39°
Sun, 1866° / 50°0
66 °
Walla Walla, Sunday, 18 October
Clear. High 66°, low 50°.
Pressure30.09 inHg
Wind10.6 mph SW
Humidity34%
Visibility—
Dew point32°
Mon, 1961° / 51°0.02
61 °
Walla Walla, Monday, 19 October
Light rain. High 61°, low 51°.
Pressure29.83 inHg
Wind11 mph W
Humidity36%
Visibility—
Dew point32°
Tue, 2055° / 51°0.07
55 °
Walla Walla, Tuesday, 20 October
Light rain. High 55°, low 51°.
Pressure29.85 inHg
Wind12.2 mph S
Humidity57%
Visibility—
Dew point38°
Wed, 2159° / 46°0
59 °
Walla Walla, Wednesday, 21 October
Overcast. High 59°, low 46°.
Pressure30.09 inHg
Wind7 mph NW
Humidity56%
Visibility—
Dew point37°
Thu, 2259° / 43°0
59 °
Walla Walla, Thursday, 22 October
Mostly clear. High 59°, low 43°.
Pressure30.15 inHg
Wind5.1 mph NW
Humidity44%
Visibility—
Dew point31°
Fri, 2364° / 44°0
64 °
Walla Walla, Friday, 23 October
Clear. High 64°, low 44°.
Pressure30.12 inHg
Wind11.3 mph SW
Humidity29%
Visibility—
Dew point25°
Sat, 2464° / 49°0
64 °
Walla Walla, Saturday, 24 October
Mostly clear. High 64°, low 49°.
Pressure30.42 inHg
Wind6.7 mph S
Humidity53%
Visibility—
Dew point41°
Sun, 2564° / 48°0
64 °
Walla Walla, Sunday, 25 October
Mostly clear. High 64°, low 48°.
Pressure30.53 inHg
Wind5.8 mph NW
Humidity49%
Visibility—
Dew point38°
Mon, 2664° / 48°0
64 °
Walla Walla, Monday, 26 October
Mostly clear. High 64°, low 48°.
Pressure30.42 inHg
Wind6 mph NW
Humidity45%
Visibility—
Dew point35°
Tue, 2766° / 47°0
66 °
Walla Walla, Tuesday, 27 October
Clear. High 66°, low 47°.
Pressure30.24 inHg
Wind5.3 mph NW
Humidity39%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2854° / 39°0.12
54 °
Walla Walla, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.12 in
Chance of precipitation50%
Record high70° (1968)
Record low19° (1991)
Thu, 2953° / 38°0.14
53 °
Walla Walla, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.14 in
Chance of precipitation48%
Record high70° (1965)
Record low18° (1971)
Fri, 3053° / 38°0.1
53 °
Walla Walla, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.1 in
Chance of precipitation38%
Record high68° (2008)
Record low11° (1991)
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)
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.