Monthly outlook for Brewster, WA: average high 61.4°, average low 43.9°. That is 0.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 October (69.3°), the coolest 12 October (36.6°).
61.4°/43.9°
Average high / low
+0.5°
Above normal
1 / 4
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
62°
62°
-0°
19 October – 28 October
60.2°
56.2°
+2.2°
29 October – 7 November
at normal
49.6°
—
October records over 66 years
86.7°1 October 1992All-time high
12.6°25 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Pateros (7 mi).
Sat, 1056° / 40°0.02
56 °
Brewster, Saturday, 10 October
Light rain. High 56°, low 40°.
Pressure29.83 inHg
Wind3.3 mph NW
Humidity65%
Visibility6.2 mi
Dew point37°
Sun, 1158° / 37°0
58 °
Brewster, Sunday, 11 October
Clear. High 58°, low 37°.
Pressure30.03 inHg
Wind10.8 mph NE
Humidity43%
Visibility6.2 mi
Dew point27°
Mon, 1260° / 37°0
60 °
Brewster, Monday, 12 October
Clear. High 60°, low 37°.
Pressure30.03 inHg
Wind3.4 mph SE
Humidity44%
Visibility6.2 mi
Dew point29°
Tue, 1359° / 41°0
59 °
Brewster, Tuesday, 13 October
Mostly clear. High 59°, low 41°.
Pressure30.15 inHg
Wind2.1 mph SE
Humidity53%
Visibility5.3 mi
Dew point35°
Wed, 1462° / 44°0
62 °
Brewster, Wednesday, 14 October
Clear. High 62°, low 44°.
Pressure30.18 inHg
Wind2.4 mph SE
Humidity59%
Visibility—
Dew point39°
Thu, 1564° / 47°0
64 °
Brewster, Thursday, 15 October
Partly cloudy. High 64°, low 47°.
Pressure30.33 inHg
Wind3.9 mph NW
Humidity49%
Visibility—
Dew point38°
Fri, 1664° / 46°0
64 °
Brewster, Friday, 16 October
Overcast. High 64°, low 46°.
Pressure30.42 inHg
Wind4.1 mph NW
Humidity47%
Visibility—
Dew point37°
Sat, 1763° / 49°0
63 °
Brewster, Saturday, 17 October
Overcast. High 63°, low 49°.
Pressure30.24 inHg
Wind4.2 mph N
Humidity45%
Visibility—
Dew point36°
Sun, 1864° / 46°0
64 °
Brewster, Sunday, 18 October
Overcast. High 64°, low 46°.
Pressure30.18 inHg
Wind4.5 mph NW
Humidity45%
Visibility—
Dew point35°
Mon, 1965° / 46°0
65 °
Brewster, Monday, 19 October
Overcast. High 65°, low 46°.
Pressure30.00 inHg
Wind5.2 mph NW
Humidity39%
Visibility—
Dew point33°
Tue, 2068° / 47°0
68 °
Brewster, Tuesday, 20 October
Clear. High 68°, low 47°.
Pressure30.06 inHg
Wind6.5 mph N
Humidity51%
Visibility—
Dew point41°
Wed, 2163° / 43°0
63 °
Brewster, Wednesday, 21 October
Clear. High 63°, low 43°.
Pressure30.15 inHg
Wind5.5 mph N
Humidity37%
Visibility—
Dew point29°
Thu, 2250° / 46°0.36
50 °
Brewster, Thursday, 22 October
Rain. High 50°, low 46°.
Pressure29.88 inHg
Wind3.9 mph NW
Humidity87%
Visibility—
Dew point42°
Fri, 2357° / 45°0
57 °
Brewster, Friday, 23 October
Overcast. High 57°, low 45°.
Pressure30.12 inHg
Wind5.2 mph NW
Humidity69%
Visibility—
Dew point41°
Sat, 2458° / 41°0
58 °
Brewster, Saturday, 24 October
Mostly clear. High 58°, low 41°.
Pressure30.12 inHg
Wind5.6 mph NW
Humidity49%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2555° / 40°0.09
55 °
Brewster, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation30%
Record high66° (1965)
Record low13° (2020)
Mon, 2654° / 39°0.08
54 °
Brewster, Monday, 26 October
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.08 in
Chance of precipitation30%
Record high68° (1965)
Record low23° (1970)
Tue, 2753° / 39°0.07
53 °
Brewster, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation28%
Record high65° (2003)
Record low22° (1970)
Wed, 2852° / 39°0.07
52 °
Brewster, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.07 in
Chance of precipitation38%
Record high64° (1987)
Record low22° (2023)
Thu, 2952° / 38°0.07
52 °
Brewster, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.07 in
Chance of precipitation25%
Record high68° (1987)
Record low19° (1972)
Fri, 3051° / 38°0.06
51 °
Brewster, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.06 in
Chance of precipitation38%
Record high63° (1962)
Record low15° (1972)
Sat, 3151° / 38°0.12
51 °
Brewster, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.12 in
Chance of precipitation43%
Record high61° (1969)
Record low16° (1984)
Sun, 0150° / 37°0.12
50 °
Brewster, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.12 in
Chance of precipitation37%
Record high61° (1987)
Record low22° (1984)
Mon, 0249° / 37°0.08
49 °
Brewster, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.08 in
Chance of precipitation32%
Record high64° (1987)
Record low19° (1991)
Tue, 0349° / 37°0.07
49 °
Brewster, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.07 in
Chance of precipitation37%
Record high62° (1987)
Record low18° (1994)
Wed, 0449° / 37°0.13
49 °
Brewster, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.13 in
Chance of precipitation45%
Record high61° (1975)
Record low20° (1961)
Thu, 0548° / 37°0.08
48 °
Brewster, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.08 in
Chance of precipitation35%
Record high61° (2012)
Record low16° (1971)
Fri, 0648° / 36°0.13
48 °
Brewster, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.13 in
Chance of precipitation43%
Record high61° (1987)
Record low19° (1971)
Sat, 0748° / 36°0.11
48 °
Brewster, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.11 in
Chance of precipitation35%
Record high59° (2006)
Record low23° (1961)
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 Brewster, 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 Brewster, 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.