Monthly outlook for Zillah, WA: average high 60°, average low 42.7°. That is 2.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 4 November (66.6°), the coolest 22 October (35.4°).
60°/42.7°
Average high / low
+2.3°
Above normal
1 / 4
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
60.4°
57.4°
+1.6°
1 November – 10 November
59.3°
52.1°
+4°
11 November – 20 November
at normal
48.2°
—
October records over 66 years
89.4°6 October 2014All-time high
21.7°30 October 1991All-time low
Fri, 2363° / 37°0
63 °
Zillah, Friday, 23 October
Clear. High 63°, low 37°.
Pressure30.21 inHg
Wind8.3 mph NW
Humidity39%
Visibility6.2 mi
Dew point32°
Sat, 2460° / 39°0
60 °
Zillah, Saturday, 24 October
Overcast. High 60°, low 39°.
Pressure30.21 inHg
Wind2.7 mph SE
Humidity42%
Visibility6.2 mi
Dew point27°
Sun, 2560° / 44°0
60 °
Zillah, Sunday, 25 October
Overcast. High 60°, low 44°.
Pressure30.00 inHg
Wind1.6 mph SW
Humidity38%
Visibility6.2 mi
Dew point28°
Mon, 2661° / 43°0
61 °
Zillah, Monday, 26 October
Mostly clear. High 61°, low 43°.
Pressure30.03 inHg
Wind2.4 mph W
Humidity48%
Visibility—
Dew point34°
Tue, 2761° / 44°0
61 °
Zillah, Tuesday, 27 October
Mostly clear. High 61°, low 44°.
Pressure30.09 inHg
Wind9.8 mph N
Humidity52%
Visibility—
Dew point36°
Wed, 2861° / 43°0
61 °
Zillah, Wednesday, 28 October
Overcast. High 61°, low 43°.
Pressure30.27 inHg
Wind10.4 mph NE
Humidity48%
Visibility—
Dew point34°
Thu, 2959° / 43°0
59 °
Zillah, Thursday, 29 October
Overcast. High 59°, low 43°.
Pressure30.03 inHg
Wind4.2 mph NW
Humidity39%
Visibility—
Dew point28°
Fri, 3061° / 41°0
61 °
Zillah, Friday, 30 October
Mostly clear. High 61°, low 41°.
Pressure29.91 inHg
Wind3.9 mph NW
Humidity39%
Visibility—
Dew point27°
Sat, 3157° / 39°0
57 °
Zillah, Saturday, 31 October
Clear. High 57°, low 39°.
Pressure29.97 inHg
Wind4.1 mph SE
Humidity47%
Visibility—
Dew point29°
Sun, 0156° / 40°0
56 °
Zillah, Sunday, 1 November
Overcast. High 56°, low 40°.
Pressure30.12 inHg
Wind4 mph NE
Humidity48%
Visibility—
Dew point30°
Mon, 0257° / 44°0
57 °
Zillah, Monday, 2 November
Overcast. High 57°, low 44°.
Pressure30.21 inHg
Wind2.6 mph NW
Humidity41%
Visibility—
Dew point29°
Tue, 0357° / 40°0
57 °
Zillah, Tuesday, 3 November
Partly cloudy. High 57°, low 40°.
Pressure30.03 inHg
Wind2.4 mph N
Humidity41%
Visibility—
Dew point27°
Wed, 0467° / 47°0
67 °
Zillah, Wednesday, 4 November
Partly cloudy. High 67°, low 47°.
Pressure29.88 inHg
Wind16.5 mph SW
Humidity42%
Visibility—
Dew point37°
Thu, 0564° / 55°0
64 °
Zillah, Thursday, 5 November
Overcast. High 64°, low 55°.
Pressure29.71 inHg
Wind15.1 mph SW
Humidity41%
Visibility—
Dew point37°
Fri, 0654° / 50°0.1
54 °
Zillah, Friday, 6 November
Light rain. High 54°, low 50°.
Pressure29.65 inHg
Wind5 mph SE
Humidity68%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0752° / 37°0.06
52 °
Zillah, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.06 in
Chance of precipitation32%
Record high67° (1978)
Record low20° (1973)
Sun, 0851° / 35°0.04
51 °
Zillah, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation22%
Record high60° (1995)
Record low26° (1973)
Mon, 0950° / 35°0.04
50 °
Zillah, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation22%
Record high63° (2016)
Record low25° (2022)
Tue, 1050° / 35°0.05
50 °
Zillah, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.05 in
Chance of precipitation28%
Record high63° (1989)
Record low17° (1986)
Wed, 1150° / 35°0.05
50 °
Zillah, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.05 in
Chance of precipitation25%
Record high67° (1990)
Record low15° (1985)
Thu, 1250° / 35°0.06
50 °
Zillah, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.06 in
Chance of precipitation23%
Record high67° (1999)
Record low8° (1985)
Fri, 1349° / 35°0.07
49 °
Zillah, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation33%
Record high67° (1999)
Record low13° (1985)
Sat, 1450° / 35°0.03
50 °
Zillah, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.03 in
Chance of precipitation18%
Record high66° (2021)
Record low16° (1985)
Sun, 1549° / 35°0.04
49 °
Zillah, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.04 in
Chance of precipitation23%
Record high64° (2021)
Record low19° (1985)
Mon, 1648° / 35°0.04
48 °
Zillah, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.04 in
Chance of precipitation28%
Record high63° (1976)
Record low20° (2014)
Tue, 1748° / 35°0.06
48 °
Zillah, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.06 in
Chance of precipitation33%
Record high68° (2019)
Record low20° (2014)
Wed, 1847° / 33°0.04
47 °
Zillah, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.04 in
Chance of precipitation22%
Record high59° (2008)
Record low18° (1985)
Thu, 1946° / 32°0.09
46 °
Zillah, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.09 in
Chance of precipitation40%
Record high57° (1989)
Record low-2° (1985)
Fri, 2046° / 32°0.07
46 °
Zillah, Friday, 20 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.07 in
Chance of precipitation28%
Record high57° (2017)
Record low14° (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 Zillah, 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 Zillah, 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.