Monthly outlook for Cascadia, OR: average high 65.7°, average low 44.9°. That is 2.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 7 days and 3.5 inches. The warmest day looks like 16 October (76.7°), the coolest 24 October (39.3°).
65.7°/44.9°
Average high / low
+2.5°
Above normal
4 / 7
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
65°
62.7°
+1.2°
25 October – 3 November
66.8°
58.3°
+4.7°
4 November – 13 November
at normal
55.1°
—
October records over 66 years
93.9°10 October 1991All-time high
25.3°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Sweet Home (10 mi).
Fri, 1677° / 45°0
77 °
Cascadia, Friday, 16 October
Overcast. High 77°, low 45°.
Pressure30.15 inHg
Wind1.2 mph W
Humidity22%
Visibility6.2 mi
Dew point38°
Sat, 1767° / 46°0.03
67 °
Cascadia, Saturday, 17 October
Light rain. High 67°, low 46°.
Pressure30.27 inHg
Wind1.5 mph NW
Humidity86%
Visibility6.2 mi
Dew point52°
Sun, 1863° / 46°0
63 °
Cascadia, Sunday, 18 October
Overcast. High 63°, low 46°.
Pressure30.03 inHg
Wind3.3 mph W
Humidity61%
Visibility6.2 mi
Dew point44°
Mon, 1960° / 43°0
60 °
Cascadia, Monday, 19 October
Light rain. High 60°, low 43°.
Pressure29.88 inHg
Wind2.6 mph W
Humidity52%
Visibility6.2 mi
Dew point39°
Tue, 2066° / 48°0
66 °
Cascadia, Tuesday, 20 October
Clear. High 66°, low 48°.
Pressure30.00 inHg
Wind7.1 mph W
Humidity59%
Visibility—
Dew point45°
Wed, 2164° / 45°0
64 °
Cascadia, Wednesday, 21 October
Clear. High 64°, low 45°.
Pressure29.94 inHg
Wind5.1 mph W
Humidity51%
Visibility—
Dew point40°
Thu, 2261° / 44°0.07
61 °
Cascadia, Thursday, 22 October
Light rain. High 61°, low 44°.
Pressure30.09 inHg
Wind4.3 mph W
Humidity64%
Visibility—
Dew point42°
Fri, 2355° / 43°0.08
55 °
Cascadia, Friday, 23 October
Light rain. High 55°, low 43°.
Pressure30.39 inHg
Wind5.3 mph NW
Humidity77%
Visibility—
Dew point44°
Sat, 2459° / 39°0
59 °
Cascadia, Saturday, 24 October
Overcast. High 59°, low 39°.
Pressure30.53 inHg
Wind4.3 mph NW
Humidity57%
Visibility—
Dew point36°
Sun, 2563° / 41°0
63 °
Cascadia, Sunday, 25 October
Overcast. High 63°, low 41°.
Pressure30.42 inHg
Wind4.8 mph NW
Humidity33%
Visibility—
Dew point27°
Mon, 2667° / 46°0
67 °
Cascadia, Monday, 26 October
Overcast. High 67°, low 46°.
Pressure30.24 inHg
Wind4.5 mph W
Humidity57%
Visibility—
Dew point45°
Tue, 2767° / 51°0.06
67 °
Cascadia, Tuesday, 27 October
Light rain. High 67°, low 51°.
Pressure30.09 inHg
Wind4.6 mph SW
Humidity60%
Visibility—
Dew point49°
Wed, 2862° / 46°0.26
62 °
Cascadia, Wednesday, 28 October
Rain. High 62°, low 46°.
Pressure30.39 inHg
Wind4.4 mph NW
Humidity89%
Visibility—
Dew point53°
Thu, 2966° / 44°0
66 °
Cascadia, Thursday, 29 October
Overcast. High 66°, low 44°.
Pressure30.36 inHg
Wind4.6 mph E
Humidity32%
Visibility—
Dew point29°
Fri, 3075° / 45°0
75 °
Cascadia, Friday, 30 October
Clear. High 75°, low 45°.
Pressure30.12 inHg
Wind5.8 mph E
Humidity27%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3157° / 42°0.28
57 °
Cascadia, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.28 in
Chance of precipitation53%
Record high75° (1966)
Record low28° (2019)
Sun, 0158° / 42°0.3
58 °
Cascadia, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.3 in
Chance of precipitation57%
Record high76° (1962)
Record low29° (2003)
Mon, 0258° / 42°0.22
58 °
Cascadia, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.22 in
Chance of precipitation50%
Record high72° (1962)
Record low24° (1973)
Tue, 0358° / 43°0.21
58 °
Cascadia, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.21 in
Chance of precipitation48%
Record high73° (1976)
Record low16° (1994)
Wed, 0457° / 43°0.35
57 °
Cascadia, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.35 in
Chance of precipitation58%
Record high73° (1980)
Record low31° (1961)
Thu, 0556° / 42°0.33
56 °
Cascadia, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.33 in
Chance of precipitation67%
Record high69° (1987)
Record low26° (1971)
Fri, 0655° / 43°0.35
55 °
Cascadia, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.35 in
Chance of precipitation67%
Record high71° (1999)
Record low31° (1971)
Sat, 0755° / 42°0.35
55 °
Cascadia, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.35 in
Chance of precipitation62%
Record high71° (1991)
Record low28° (1982)
Sun, 0855° / 40°0.31
55 °
Cascadia, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.31 in
Chance of precipitation58%
Record high70° (1976)
Record low29° (1993)
Mon, 0954° / 40°0.23
54 °
Cascadia, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.23 in
Chance of precipitation58%
Record high68° (1996)
Record low26° (2020)
Tue, 1055° / 40°0.23
55 °
Cascadia, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.23 in
Chance of precipitation48%
Record high69° (2016)
Record low14° (1985)
Wed, 1155° / 41°0.31
55 °
Cascadia, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.31 in
Chance of precipitation53%
Record high68° (1999)
Record low10° (1985)
Thu, 1255° / 41°0.28
55 °
Cascadia, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.28 in
Chance of precipitation55%
Record high70° (1967)
Record low6° (1985)
Fri, 1355° / 41°0.35
55 °
Cascadia, Friday, 13 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.35 in
Chance of precipitation62%
Record high70° (2025)
Record low16° (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 Cascadia, OR 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 Cascadia, OR 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.