As of 21:09 PDT

Weather in Portland, OR

46°

Portland, Saturday, 31 October, 21:09

Mostly clear. Feels like 44°. High 54°, low 37°.

Pressure29.91 inHg

Wind3.4 mph W

Humidity89%

Visibility6.2 mi

Dew point42°

See detailed hourly forecast

Monthly outlook for Portland, OR: average high 55.2°, average low 45°. That is 0.6° above the climate normal for October. Precipitation is expected on 10 days (about 3.5 inches), against a normal of 9 days and 3.6 inches. The warmest day looks like 7 November (62.3°), the coolest 31 October (37.2°).

55.2°/45°

Average high / low

+0.6°

Above normal

10 / 9

Wet days / normal

3.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
31 October – 9 November	56.3°	55°	+0.8°
10 November – 19 November	53.5°	52°	+0.8°
20 November – 29 November	at normal	48.3°	—

October records over 66 years

90.7°1 October 1987All-time high

26.4°29 October 1971All-time low

Sun, 0151° / 38°

51 °

Portland, Sunday, 1 November

Overcast. High 51°, low 38°.

Pressure30.09 inHg

Wind0.2 mph NW

Humidity88%

Visibility0.6 mi

Dew point42°

Mon, 0254° / 41°

54 °

Portland, Monday, 2 November

Overcast. High 54°, low 41°.

Pressure30.21 inHg

Wind2.7 mph NW

Humidity86%

Visibility—

Dew point44°

Tue, 0360° / 45°

60 °

Portland, Tuesday, 3 November

Overcast. High 60°, low 45°.

Pressure30.03 inHg

Wind2.4 mph NE

Humidity58%

Visibility6.2 mi

Dew point43°

Wed, 0454° / 41°

0.08

54 °

Portland, Wednesday, 4 November

Light rain. High 54°, low 41°.

Pressure30.12 inHg

Wind0.8 mph SE

Humidity86%

Visibility6.2 mi

Dew point45°

Thu, 0558° / 47°

0.04

58 °

Portland, Thursday, 5 November

Light rain. High 58°, low 47°.

Pressure30.21 inHg

Wind5.7 mph SW

Humidity92%

Visibility—

Dew point50°

Fri, 0656° / 48°

0.07

56 °

Portland, Friday, 6 November

Light rain. High 56°, low 48°.

Pressure30.15 inHg

Wind8.6 mph S

Humidity89%

Visibility—

Dew point48°

Sat, 0762° / 49°

0.04

62 °

Portland, Saturday, 7 November

Light rain. High 62°, low 49°.

Pressure30.00 inHg

Wind4.3 mph SE

Humidity67%

Visibility—

Dew point44°

Sun, 0856° / 48°

0.3

56 °

Portland, Sunday, 8 November

Rain. High 56°, low 48°.

Pressure30.12 inHg

Wind6.8 mph N

Humidity86%

Visibility—

Dew point48°

Mon, 0958° / 44°

0.3

58 °

Portland, Monday, 9 November

Rain. High 58°, low 44°.

Pressure29.97 inHg

Wind6.8 mph E

Humidity66%

Visibility—

Dew point38°

Tue, 1058° / 48°

0.23

58 °

Portland, Tuesday, 10 November

Rain. High 58°, low 48°.

Pressure29.88 inHg

Wind6.3 mph E

Humidity77%

Visibility—

Dew point46°

Wed, 1155° / 51°

1.09

55 °

Portland, Wednesday, 11 November

Rain. High 55°, low 51°.

Pressure29.80 inHg

Wind14.4 mph SW

Humidity80%

Visibility—

Dew point46°

Thu, 1251° / 47°

0.95

51 °

Portland, Thursday, 12 November

Rain. High 51°, low 47°.

Pressure29.65 inHg

Wind18.3 mph S

Humidity87%

Visibility—

Dew point47°

Fri, 1352° / 47°

0.3

52 °

Portland, Friday, 13 November

Rain. High 52°, low 47°.

Pressure29.47 inHg

Wind12.3 mph SW

Humidity81%

Visibility—

Dew point43°

Sat, 1452° / 45°

0.03

52 °

Portland, Saturday, 14 November

Light rain. High 52°, low 45°.

Pressure29.88 inHg

Wind3.8 mph N

Humidity83%

Visibility—

Dew point44°

Sun, 1552° / 42°

0.04

52 °

Portland, Sunday, 15 November

Light rain. High 52°, low 42°.

Pressure29.85 inHg

Wind4.7 mph E

Humidity72%

Visibility—

Dew point38°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 1651° / 40°

0.19

51 °

Portland, Monday, 16 November

Climate normal for this date — 60-year average.

Average high51°

Average low40°

Average precipitation0.19 in

Chance of precipitation65%

Record high64° (1976)

Record low23° (2014)

Tue, 1751° / 40°

0.24

51 °

Portland, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high51°

Average low40°

Average precipitation0.24 in

Chance of precipitation75%

Record high63° (1995)

Record low25° (2014)

Wed, 1850° / 39°

0.17

50 °

Portland, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high50°

Average low39°

Average precipitation0.17 in

Chance of precipitation57%

Record high60° (1968)

Record low25° (1994)

Thu, 1950° / 39°

0.36

50 °

Portland, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high50°

Average low39°

Average precipitation0.36 in

Chance of precipitation63%

Record high61° (1987)

Record low26° (2000)

Fri, 2050° / 38°

0.24

50 °

Portland, Friday, 20 November

Climate normal for this date — 60-year average.

Average high50°

Average low38°

Average precipitation0.24 in

Chance of precipitation57%

Record high67° (2002)

Record low23° (1977)

Sat, 2149° / 37°

0.24

49 °

Portland, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high49°

Average low37°

Average precipitation0.24 in

Chance of precipitation53%

Record high60° (2002)

Record low23° (1985)

Sun, 2248° / 37°

0.28

48 °

Portland, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high48°

Average low37°

Average precipitation0.28 in

Chance of precipitation57%

Record high65° (2017)

Record low18° (1985)

Mon, 2348° / 37°

0.28

48 °

Portland, Monday, 23 November

Climate normal for this date — 60-year average.

Average high48°

Average low37°

Average precipitation0.28 in

Chance of precipitation65%

Record high59° (2017)

Record low6° (1985)

Tue, 2448° / 38°

0.3

48 °

Portland, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high48°

Average low38°

Average precipitation0.3 in

Chance of precipitation60%

Record high57° (1974)

Record low7° (1985)

Wed, 2548° / 37°

0.32

48 °

Portland, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high48°

Average low37°

Average precipitation0.32 in

Chance of precipitation63%

Record high58° (1977)

Record low12° (1985)

Thu, 2648° / 37°

0.2

48 °

Portland, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high48°

Average low37°

Average precipitation0.2 in

Chance of precipitation53%

Record high61° (2014)

Record low24° (1993)

Fri, 2748° / 37°

0.24

48 °

Portland, Friday, 27 November

Climate normal for this date — 60-year average.

Average high48°

Average low37°

Average precipitation0.24 in

Chance of precipitation62%

Record high58° (2021)

Record low22° (1985)

Sat, 2848° / 36°

0.2

48 °

Portland, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high48°

Average low36°

Average precipitation0.2 in

Chance of precipitation50%

Record high59° (2021)

Record low21° (1985)

Sun, 2947° / 36°

0.2

47 °

Portland, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high47°

Average low36°

Average precipitation0.2 in

Chance of precipitation50%

Record high58° (2021)

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 Portland, 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 Portland, 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.