Monthly outlook for Decatur, WA: average high 53.2°, average low 48.3°. That is 0° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 8 days and 3.5 inches. The warmest day looks like 17 October (63.2°), the coolest 20 October (45.9°).
53.2°/48.3°
Average high / low
+0°
Above normal
3 / 8
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
54.5°
54°
+0.3°
26 October – 4 November
51°
51.6°
-0.3°
5 November – 14 November
at normal
49.9°
—
October records over 66 years
74.8°8 October 2023All-time high
25.3°28 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Indian Village (9 mi).
Sat, 1763° / 50°0.11
63 °
Decatur, Saturday, 17 October
Rain. High 63°, low 50°.
Pressure30.24 inHg
Wind13.6 mph W
Humidity75%
Visibility6.2 mi
Dew point49°
Sun, 1854° / 48°0
54 °
Decatur, Sunday, 18 October
Overcast. High 54°, low 48°.
Pressure30.18 inHg
Wind2.5 mph N
Humidity83%
Visibility0.2 mi
Dew point47°
Mon, 1953° / 48°0
53 °
Decatur, Monday, 19 October
Overcast. High 53°, low 48°.
Pressure29.88 inHg
Wind2.4 mph SE
Humidity90%
Visibility4.8 mi
Dew point48°
Tue, 2055° / 46°0
55 °
Decatur, Tuesday, 20 October
Overcast. High 55°, low 46°.
Pressure30.09 inHg
Wind5.4 mph N
Humidity90%
Visibility0.4 mi
Dew point48°
Wed, 2154° / 49°0
54 °
Decatur, Wednesday, 21 October
Overcast. High 54°, low 49°.
Pressure30.00 inHg
Wind4.1 mph SW
Humidity94%
Visibility—
Dew point49°
Thu, 2252° / 49°0
52 °
Decatur, Thursday, 22 October
Overcast. High 52°, low 49°.
Pressure29.94 inHg
Wind8.9 mph NW
Humidity78%
Visibility—
Dew point44°
Fri, 2352° / 50°0
52 °
Decatur, Friday, 23 October
Overcast. High 52°, low 50°.
Pressure30.18 inHg
Wind14.1 mph N
Humidity80%
Visibility—
Dew point44°
Sat, 2451° / 47°0
51 °
Decatur, Saturday, 24 October
Clear. High 51°, low 47°.
Pressure30.21 inHg
Wind5.2 mph N
Humidity74%
Visibility—
Dew point40°
Sun, 2552° / 48°0
52 °
Decatur, Sunday, 25 October
Overcast. High 52°, low 48°.
Pressure30.12 inHg
Wind7.1 mph SE
Humidity70%
Visibility—
Dew point40°
Mon, 2649° / 47°0
49 °
Decatur, Monday, 26 October
Partly cloudy. High 49°, low 47°.
Pressure30.12 inHg
Wind7 mph SE
Humidity82%
Visibility—
Dew point43°
Tue, 2750° / 48°0.08
50 °
Decatur, Tuesday, 27 October
Light rain. High 50°, low 48°.
Pressure29.85 inHg
Wind8.9 mph NE
Humidity75%
Visibility—
Dew point41°
Wed, 2851° / 49°0.34
51 °
Decatur, Wednesday, 28 October
Rain. High 51°, low 49°.
Pressure29.91 inHg
Wind13 mph SE
Humidity91%
Visibility—
Dew point48°
Thu, 2951° / 49°0
51 °
Decatur, Thursday, 29 October
Clear. High 51°, low 49°.
Pressure30.24 inHg
Wind3.6 mph N
Humidity83%
Visibility—
Dew point45°
Fri, 3051° / 47°0
51 °
Decatur, Friday, 30 October
Clear. High 51°, low 47°.
Pressure30.15 inHg
Wind7.8 mph N
Humidity81%
Visibility—
Dew point43°
Sat, 3153° / 49°0
53 °
Decatur, Saturday, 31 October
Overcast. High 53°, low 49°.
Pressure29.88 inHg
Wind8.6 mph E
Humidity67%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0151° / 45°0.22
51 °
Decatur, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low45°
Average precipitation0.22 in
Chance of precipitation48%
Record high59° (1969)
Record low33° (2023)
Mon, 0251° / 45°0.23
51 °
Decatur, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low45°
Average precipitation0.23 in
Chance of precipitation57%
Record high60° (2020)
Record low36° (2002)
Tue, 0351° / 45°0.3
51 °
Decatur, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low45°
Average precipitation0.3 in
Chance of precipitation60%
Record high60° (1970)
Record low34° (2017)
Wed, 0451° / 45°0.31
51 °
Decatur, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low45°
Average precipitation0.31 in
Chance of precipitation60%
Record high62° (2023)
Record low31° (2025)
Thu, 0551° / 45°0.19
51 °
Decatur, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low45°
Average precipitation0.19 in
Chance of precipitation58%
Record high60° (1980)
Record low33° (1971)
Fri, 0650° / 45°0.3
50 °
Decatur, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low45°
Average precipitation0.3 in
Chance of precipitation60%
Record high59° (2014)
Record low32° (2017)
Sat, 0751° / 45°0.27
51 °
Decatur, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low45°
Average precipitation0.27 in
Chance of precipitation67%
Record high57° (2016)
Record low32° (2017)
Sun, 0850° / 44°0.21
50 °
Decatur, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.21 in
Chance of precipitation60%
Record high62° (2016)
Record low34° (2022)
Mon, 0950° / 44°0.25
50 °
Decatur, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.25 in
Chance of precipitation65%
Record high62° (2025)
Record low31° (2020)
Tue, 1050° / 44°0.2
50 °
Decatur, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.2 in
Chance of precipitation52%
Record high61° (2025)
Record low33° (1986)
Wed, 1150° / 44°0.25
50 °
Decatur, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.25 in
Chance of precipitation57%
Record high56° (1990)
Record low29° (1985)
Thu, 1249° / 44°0.25
49 °
Decatur, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low44°
Average precipitation0.25 in
Chance of precipitation68%
Record high57° (2016)
Record low32° (2022)
Fri, 1349° / 44°0.28
49 °
Decatur, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low44°
Average precipitation0.28 in
Chance of precipitation67%
Record high59° (1967)
Record low33° (2022)
Sat, 1449° / 44°0.25
49 °
Decatur, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low44°
Average precipitation0.25 in
Chance of precipitation55%
Record high57° (1995)
Record low30° (2023)
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 Decatur, 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 Decatur, 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.