Monthly outlook for Chew, WA: average high 63.6°, average low 46.4°. That is 0.4° below the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 8 October (82.5°), the coolest 13 October (37.4°).
63.6°/46.4°
Average high / low
−0.4°
Below normal
2 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
63.2°
65.4°
-1.2°
17 October – 26 October
64.3°
61.3°
+1.7°
27 October – 5 November
at normal
54.8°
—
October records over 66 years
89.6°2 October 1975All-time high
18.7°30 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Washtucna (10 mi).
Thu, 0882° / 47°0
82 °
Chew, Thursday, 8 October
Overcast. High 82°, low 47°.
Pressure30.00 inHg
Wind2.3 mph S
Humidity31%
Visibility6.2 mi
Dew point40°
Fri, 0970° / 51°0.02
70 °
Chew, Friday, 9 October
Light rain. High 70°, low 51°.
Pressure29.68 inHg
Wind15.5 mph SW
Humidity40%
Visibility6.2 mi
Dew point43°
Sat, 1059° / 46°0
59 °
Chew, Saturday, 10 October
Clear. High 59°, low 46°.
Pressure29.83 inHg
Wind8.1 mph SW
Humidity44%
Visibility6.2 mi
Dew point34°
Sun, 1157° / 44°0
57 °
Chew, Sunday, 11 October
Clear. High 57°, low 44°.
Pressure30.03 inHg
Wind16.8 mph NE
Humidity40%
Visibility6.2 mi
Dew point21°
Mon, 1259° / 39°0
59 °
Chew, Monday, 12 October
Clear. High 59°, low 39°.
Pressure30.15 inHg
Wind11.2 mph NE
Humidity46%
Visibility—
Dew point29°
Tue, 1353° / 37°0.11
53 °
Chew, Tuesday, 13 October
Light rain. High 53°, low 37°.
Pressure30.06 inHg
Wind18.6 mph SW
Humidity42%
Visibility—
Dew point29°
Wed, 1457° / 45°0.05
57 °
Chew, Wednesday, 14 October
Light rain. High 57°, low 45°.
Pressure29.94 inHg
Wind18.1 mph SW
Humidity71%
Visibility—
Dew point39°
Thu, 1556° / 44°0
56 °
Chew, Thursday, 15 October
Clear. High 56°, low 44°.
Pressure30.36 inHg
Wind4 mph N
Humidity59%
Visibility—
Dew point37°
Fri, 1660° / 43°0
60 °
Chew, Friday, 16 October
Clear. High 60°, low 43°.
Pressure30.45 inHg
Wind6.8 mph E
Humidity46%
Visibility—
Dew point31°
Sat, 1763° / 48°0
63 °
Chew, Saturday, 17 October
Overcast. High 63°, low 48°.
Pressure30.27 inHg
Wind3.4 mph S
Humidity33%
Visibility—
Dew point27°
Sun, 1866° / 50°0
66 °
Chew, Sunday, 18 October
Partly cloudy. High 66°, low 50°.
Pressure30.09 inHg
Wind5.9 mph W
Humidity28%
Visibility—
Dew point26°
Mon, 1965° / 50°0
65 °
Chew, Monday, 19 October
Partly cloudy. High 65°, low 50°.
Pressure30.21 inHg
Wind3.8 mph W
Humidity34%
Visibility—
Dew point30°
Tue, 2067° / 51°0
67 °
Chew, Tuesday, 20 October
Overcast. High 67°, low 51°.
Pressure30.15 inHg
Wind6.9 mph S
Humidity36%
Visibility—
Dew point32°
Wed, 2167° / 52°0
67 °
Chew, Wednesday, 21 October
Overcast. High 67°, low 52°.
Pressure29.94 inHg
Wind28.1 mph W
Humidity40%
Visibility—
Dew point40°
Thu, 2258° / 45°0
58 °
Chew, Thursday, 22 October
Clear. High 58°, low 45°.
Pressure30.12 inHg
Wind14.2 mph SW
Humidity39%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2360° / 44°0.05
60 °
Chew, Friday, 23 October
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.05 in
Chance of precipitation22%
Record high73° (2007)
Record low32° (2020)
Sat, 2460° / 43°0.04
60 °
Chew, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.04 in
Chance of precipitation18%
Record high75° (1977)
Record low32° (2020)
Sun, 2560° / 43°0.05
60 °
Chew, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.05 in
Chance of precipitation25%
Record high75° (1965)
Record low23° (2020)
Mon, 2658° / 42°0.05
58 °
Chew, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.05 in
Chance of precipitation32%
Record high72° (1986)
Record low24° (2020)
Tue, 2757° / 41°0.06
57 °
Chew, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.06 in
Chance of precipitation25%
Record high72° (1965)
Record low25° (2020)
Wed, 2856° / 41°0.04
56 °
Chew, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.04 in
Chance of precipitation32%
Record high73° (2003)
Record low24° (2023)
Thu, 2955° / 40°0.06
55 °
Chew, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.06 in
Chance of precipitation33%
Record high70° (1965)
Record low22° (1971)
Fri, 3055° / 40°0.06
55 °
Chew, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.06 in
Chance of precipitation27%
Record high67° (2015)
Record low19° (2019)
Sat, 3154° / 40°0.07
54 °
Chew, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.07 in
Chance of precipitation30%
Record high70° (2008)
Record low22° (1984)
Sun, 0154° / 40°0.08
54 °
Chew, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.08 in
Chance of precipitation35%
Record high73° (1965)
Record low22° (2019)
Mon, 0254° / 40°0.05
54 °
Chew, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.05 in
Chance of precipitation27%
Record high65° (1981)
Record low22° (2002)
Tue, 0355° / 40°0.03
55 °
Chew, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.03 in
Chance of precipitation18%
Record high69° (1975)
Record low25° (2002)
Wed, 0455° / 40°0.09
55 °
Chew, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation43%
Record high71° (1975)
Record low26° (2003)
Thu, 0553° / 39°0.06
53 °
Chew, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.06 in
Chance of precipitation37%
Record high66° (1975)
Record low22° (2003)
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 Chew, 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 Chew, 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.