Monthly outlook for Central Valley, WA: average high 55.2°, average low 42.9°. That is 0.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 8 days and 3.3 inches. The warmest day looks like 17 October (64.1°), the coolest 29 October (37.6°).
55.2°/42.9°
Average high / low
+0.4°
Above normal
4 / 8
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
57.8°
55.7°
+1.2°
27 October – 5 November
50.8°
52.2°
-0.8°
6 November – 15 November
at normal
49.7°
—
October records over 66 years
83.5°16 October 2022All-time high
28.4°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Chico (4 mi).
Sun, 1860° / 39°0
60 °
Central Valley, Sunday, 18 October
Overcast. High 60°, low 39°.
Pressure30.15 inHg
Wind5 mph N
Humidity60%
Visibility6.2 mi
Dew point44°
Mon, 1958° / 46°0
58 °
Central Valley, Monday, 19 October
Overcast. High 58°, low 46°.
Pressure29.97 inHg
Wind1.1 mph E
Humidity66%
Visibility6.2 mi
Dew point45°
Tue, 2060° / 45°0
60 °
Central Valley, Tuesday, 20 October
Clear. High 60°, low 45°.
Pressure30.06 inHg
Wind9.9 mph N
Humidity65%
Visibility6.2 mi
Dew point46°
Wed, 2163° / 45°0
63 °
Central Valley, Wednesday, 21 October
Clear. High 63°, low 45°.
Pressure30.00 inHg
Wind2.5 mph NE
Humidity59%
Visibility—
Dew point41°
Thu, 2259° / 46°0.01
59 °
Central Valley, Thursday, 22 October
Light rain. High 59°, low 46°.
Pressure29.97 inHg
Wind9.1 mph N
Humidity77%
Visibility—
Dew point45°
Fri, 2354° / 42°0.04
54 °
Central Valley, Friday, 23 October
Light rain. High 54°, low 42°.
Pressure30.24 inHg
Wind3.5 mph SW
Humidity78%
Visibility—
Dew point43°
Sat, 2457° / 39°0
57 °
Central Valley, Saturday, 24 October
Overcast. High 57°, low 39°.
Pressure30.21 inHg
Wind4.7 mph S
Humidity68%
Visibility—
Dew point38°
Sun, 2555° / 45°0.18
55 °
Central Valley, Sunday, 25 October
Light rain. High 55°, low 45°.
Pressure30.09 inHg
Wind13 mph S
Humidity92%
Visibility—
Dew point45°
Mon, 2649° / 46°0.17
49 °
Central Valley, Monday, 26 October
Light rain. High 49°, low 46°.
Pressure29.97 inHg
Wind10 mph S
Humidity94%
Visibility—
Dew point46°
Tue, 2750° / 40°0.06
50 °
Central Valley, Tuesday, 27 October
Light rain. High 50°, low 40°.
Pressure30.00 inHg
Wind5.3 mph S
Humidity86%
Visibility—
Dew point43°
Wed, 2848° / 44°0.54
48 °
Central Valley, Wednesday, 28 October
Rain. High 48°, low 44°.
Pressure29.71 inHg
Wind11.7 mph S
Humidity97%
Visibility—
Dew point44°
Thu, 2952° / 38°0
52 °
Central Valley, Thursday, 29 October
Partly cloudy. High 52°, low 38°.
Pressure30.06 inHg
Wind4.4 mph S
Humidity83%
Visibility—
Dew point40°
Fri, 3053° / 39°0.01
53 °
Central Valley, Friday, 30 October
Light rain. High 53°, low 39°.
Pressure30.03 inHg
Wind9.7 mph S
Humidity79%
Visibility—
Dew point41°
Sat, 3154° / 43°0
54 °
Central Valley, Saturday, 31 October
Overcast. High 54°, low 43°.
Pressure30.21 inHg
Wind4.6 mph S
Humidity85%
Visibility—
Dew point45°
Sun, 0148° / 43°0.04
48 °
Central Valley, Sunday, 1 November
Light rain. High 48°, low 43°.
Pressure30.09 inHg
Wind8.6 mph S
Humidity90%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0252° / 43°0.21
52 °
Central Valley, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.21 in
Chance of precipitation50%
Record high65° (1962)
Record low31° (1973)
Tue, 0352° / 43°0.22
52 °
Central Valley, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.22 in
Chance of precipitation62%
Record high62° (2010)
Record low33° (1973)
Wed, 0452° / 43°0.29
52 °
Central Valley, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.29 in
Chance of precipitation68%
Record high64° (1980)
Record low31° (2003)
Thu, 0551° / 42°0.2
51 °
Central Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.2 in
Chance of precipitation65%
Record high62° (1997)
Record low26° (1973)
Fri, 0650° / 42°0.28
50 °
Central Valley, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.28 in
Chance of precipitation60%
Record high56° (1976)
Record low29° (2003)
Sat, 0751° / 42°0.22
51 °
Central Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.22 in
Chance of precipitation57%
Record high59° (1976)
Record low31° (1977)
Sun, 0850° / 42°0.17
50 °
Central Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.17 in
Chance of precipitation52%
Record high63° (2016)
Record low31° (1977)
Mon, 0949° / 41°0.24
49 °
Central Valley, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.24 in
Chance of precipitation63%
Record high63° (2025)
Record low32° (1978)
Tue, 1050° / 41°0.18
50 °
Central Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.18 in
Chance of precipitation47%
Record high61° (2016)
Record low29° (1986)
Wed, 1150° / 42°0.26
50 °
Central Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.26 in
Chance of precipitation57%
Record high59° (1996)
Record low28° (1985)
Thu, 1249° / 42°0.26
49 °
Central Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.26 in
Chance of precipitation68%
Record high58° (2025)
Record low27° (1985)
Fri, 1350° / 41°0.31
50 °
Central Valley, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.31 in
Chance of precipitation55%
Record high60° (1967)
Record low31° (1985)
Sat, 1449° / 41°0.28
49 °
Central Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.28 in
Chance of precipitation57%
Record high61° (1969)
Record low30° (1964)
Sun, 1549° / 41°0.28
49 °
Central Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.28 in
Chance of precipitation65%
Record high56° (2019)
Record low31° (2014)
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 Central 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 Central 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.