Monthly outlook for Kelso, WA: average high 66.9°, average low 46.7°. That is 3.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 24 October (75.3°), the coolest 12 October (42.7°).
66.9°/46.7°
Average high / low
+3.1°
Above normal
2 / 6
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
66.1°
62.3°
+2.1°
19 October – 28 October
68.3°
58.5°
+5.4°
29 October – 7 November
at normal
54.8°
—
October records over 66 years
89.8°1 October 1987All-time high
27.3°28 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Prescott (5 mi).
Sat, 1062° / 45°0.07
62 °
Kelso, Saturday, 10 October
Light rain. High 62°, low 45°.
Pressure29.85 inHg
Wind2.7 mph S
Humidity80%
Visibility6.2 mi
Dew point48°
Sun, 1164° / 44°0
64 °
Kelso, Sunday, 11 October
Clear. High 64°, low 44°.
Pressure29.97 inHg
Wind3.6 mph N
Humidity54%
Visibility6.2 mi
Dew point42°
Mon, 1264° / 43°0
64 °
Kelso, Monday, 12 October
Clear. High 64°, low 43°.
Pressure30.09 inHg
Wind1.8 mph N
Humidity50%
Visibility6.2 mi
Dew point40°
Tue, 1365° / 44°0
65 °
Kelso, Tuesday, 13 October
Partly cloudy. High 65°, low 44°.
Pressure30.18 inHg
Wind5.2 mph W
Humidity68%
Visibility—
Dew point44°
Wed, 1464° / 49°0
64 °
Kelso, Wednesday, 14 October
Overcast. High 64°, low 49°.
Pressure30.30 inHg
Wind3.1 mph SE
Humidity78%
Visibility—
Dew point51°
Thu, 1568° / 51°0
68 °
Kelso, Thursday, 15 October
Overcast. High 68°, low 51°.
Pressure30.24 inHg
Wind5.6 mph N
Humidity75%
Visibility—
Dew point49°
Fri, 1675° / 50°0
75 °
Kelso, Friday, 16 October
Partly cloudy. High 75°, low 50°.
Pressure30.30 inHg
Wind6.4 mph NW
Humidity47%
Visibility—
Dew point44°
Sat, 1765° / 49°0
65 °
Kelso, Saturday, 17 October
Overcast. High 65°, low 49°.
Pressure30.18 inHg
Wind7.1 mph N
Humidity72%
Visibility—
Dew point48°
Sun, 1867° / 44°0
67 °
Kelso, Sunday, 18 October
Overcast. High 67°, low 44°.
Pressure30.06 inHg
Wind5.2 mph NW
Humidity57%
Visibility—
Dew point43°
Mon, 1961° / 46°0
61 °
Kelso, Monday, 19 October
Overcast. High 61°, low 46°.
Pressure30.15 inHg
Wind4.2 mph NW
Humidity61%
Visibility—
Dew point42°
Tue, 2065° / 45°0
65 °
Kelso, Tuesday, 20 October
Overcast. High 65°, low 45°.
Pressure30.27 inHg
Wind2.8 mph S
Humidity68%
Visibility—
Dew point46°
Wed, 2166° / 47°0
66 °
Kelso, Wednesday, 21 October
Overcast. High 66°, low 47°.
Pressure30.24 inHg
Wind4.4 mph SE
Humidity61%
Visibility—
Dew point42°
Thu, 2269° / 45°0
69 °
Kelso, Thursday, 22 October
Overcast. High 69°, low 45°.
Pressure30.15 inHg
Wind4.9 mph N
Humidity61%
Visibility—
Dew point43°
Fri, 2373° / 46°0
73 °
Kelso, Friday, 23 October
Clear. High 73°, low 46°.
Pressure29.97 inHg
Wind2.6 mph SE
Humidity39%
Visibility—
Dew point36°
Sat, 2475° / 49°0
75 °
Kelso, Saturday, 24 October
Mostly clear. High 75°, low 49°.
Pressure29.94 inHg
Wind3.2 mph SE
Humidity34%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2557° / 44°0.2
57 °
Kelso, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.2 in
Chance of precipitation53%
Record high74° (1965)
Record low33° (2020)
Mon, 2657° / 44°0.23
57 °
Kelso, Monday, 26 October
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.23 in
Chance of precipitation52%
Record high71° (2003)
Record low31° (2020)
Tue, 2757° / 43°0.23
57 °
Kelso, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.23 in
Chance of precipitation43%
Record high72° (1987)
Record low31° (1971)
Wed, 2856° / 43°0.23
56 °
Kelso, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.23 in
Chance of precipitation58%
Record high72° (1987)
Record low27° (1971)
Thu, 2956° / 43°0.16
56 °
Kelso, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.16 in
Chance of precipitation52%
Record high71° (1962)
Record low30° (1971)
Fri, 3055° / 42°0.2
55 °
Kelso, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.2 in
Chance of precipitation50%
Record high66° (1993)
Record low29° (2019)
Sat, 3155° / 43°0.28
55 °
Kelso, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.28 in
Chance of precipitation55%
Record high69° (1966)
Record low29° (2006)
Sun, 0155° / 43°0.23
55 °
Kelso, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.23 in
Chance of precipitation53%
Record high69° (1962)
Record low30° (2019)
Mon, 0255° / 42°0.18
55 °
Kelso, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.18 in
Chance of precipitation52%
Record high67° (1962)
Record low30° (1995)
Tue, 0355° / 44°0.19
55 °
Kelso, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.19 in
Chance of precipitation57%
Record high68° (2010)
Record low29° (1995)
Wed, 0455° / 44°0.3
55 °
Kelso, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.3 in
Chance of precipitation62%
Record high70° (1980)
Record low31° (2003)
Thu, 0554° / 42°0.22
54 °
Kelso, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.22 in
Chance of precipitation68%
Record high66° (1987)
Record low26° (1971)
Fri, 0653° / 42°0.28
53 °
Kelso, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.28 in
Chance of precipitation67%
Record high63° (2012)
Record low32° (1971)
Sat, 0754° / 42°0.24
54 °
Kelso, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.24 in
Chance of precipitation62%
Record high64° (2016)
Record low33° (2020)
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 Kelso, 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 Kelso, 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.