Portland 30-day weather forecast

Beyond about 10 days any forecast drifts towards the usual weather for the time of year, so read the outlook as what is typical for the date, not as a prediction for that day.

Portland day-by-day calendar

  • Days 1–16: daily forecast model
  • Days 17–30: outlook (30-day statistical model), with the usual high / low for the date
Portland day-by-day calendar
SunMonTueWedThuFriSat
6Forecast
Rain
65°
/ 57°
Rain 80%
7Forecast
Rain
60°
/ 53°
Rain 70%
8Forecast
Light drizzle
53°
/ 45°
Rain 70%
9Forecast
Overcast
55°
/ 43°
Rain 5%
10Forecast
Light drizzle
53°
/ 41°
Rain 4%
11Forecast
Overcast
52°
/ 42°
Rain 4%
12Forecast
Mostly sunny
47°
/ 35°
Rain 4%
13Forecast
Overcast
44°
/ 34°
Rain 9%
14Forecast
Heavy snow
41°
/ 32°
Rain 12%
15Forecast
Fog
37°
/ 31°
Rain 12%
16Forecast
Sunny
45°
/ 31°
Rain 2%
17Forecast
Mostly sunny
49°
/ 33°
Rain 12%
18Forecast
Sunny
52°
/ 39°
Rain 14%
19Forecast
Overcast
51°
/ 43°
Rain 14%
20Forecast
Light drizzle
55°
/ 44°
Rain 0 in
21Forecast
Overcast
47°
/ 35°
—
22Outlook
Light rain
52°
/ 37°
Rain 0.1 in
Usual 50° / 32°F
23Outlook
Rain
59°
/ 52°
Rain 1.5 in
Usual 50° / 32°F
24Outlook
Light rain
53°
/ 38°
Rain 0 in
Usual 50° / 32°F
25Outlook
Partly cloudy
44°
/ 36°
—
Usual 50° / 32°F
26Outlook
Sunny
44°
/ 35°
—
Usual 50° / 32°F
27Outlook
Partly cloudy
46°
/ 39°
—
Usual 50° / 32°F
28Outlook
Light rain
46°
/ 42°
Rain 0 in
Usual 50° / 32°F
29Outlook
Light rain
46°
/ 44°
Rain 0.2 in
Usual 50° / 32°F
30Outlook
Rain
56°
/ 45°
Rain 0.7 in
Usual 50° / 32°F
1 DecOutlook
Rain
60°
/ 50°
Rain 0.7 in
Usual 39° / 25°F
2Outlook
Light rain
50°
/ 43°
Rain 0 in
Usual 39° / 25°F
3Outlook
Mostly cloudy
43°
/ 36°
—
Usual 39° / 25°F
4Outlook
Light rain
41°
/ 36°
Rain 0 in
Usual 39° / 25°F
5Outlook
Rain
41°
/ 37°
Rain 1.2 in
Usual 39° / 25°F

Portland weather in November

November in Portland: highs around 50°F (10°C), lows around 32°F (0°C) and about 2.3 in (58 mm) of rain.

November

Average high
50°F
Average low
32°F
Precipitation
2.3 in
Record high
76°F
Record low
18°F

December

Average high
39°F
Average low
25°F
Precipitation
2.9 in
Record high
61°F
Record low
4°F

Climate averages from historical daily data.

Portland weather by month →

Portland 30-day forecast: your questions

What is the 30 day weather forecast for Portland?

The 30-day view for Portland starts with 15 days of forecast: highs from 31°F (-1°C) up to 65°F (18°C) on Friday, and rain likely on 5 of them (2.4 in (60.2 mm) in all). After that it shows the usual December weather: highs near 39°F (4°C), lows near 25°F (-4°C), about 2.9 in (74.4 mm) over the month. Day by day: Portland 10-day forecast.

What will the weather be in Portland next month?

In December, Portland usually has highs around 39°F (4°C) and lows around 25°F (-4°C), with about 2.9 in (74.4 mm) of rain. The records are 61°F (16°C) and 4°F (-15°C). Month by month: Portland weather by month.