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National Weather Service
Weather Information for Portland, Oregon
  MAPMAP
Weather Forecast
Issued at 02:24  (Local time)  25 May  2018 
Date Temperature oF Weather
Minimum Maximum
25 May
( Fri ) 		- 71 Mostly Cloudy
Mostly Cloudy
26 May
( Sat ) 		52 67 Patchy Drizzle
Patchy Drizzle
27 May
( Sun ) 		51 75 Mostly Sunny
Mostly Sunny
28 May
( Mon ) 		54 77 Mostly Sunny
Mostly Sunny
29 May
( Tue ) 		54 72 Partly Sunny
Partly Sunny
30 May
( Wed ) 		51 68 Mostly Cloudy
Mostly Cloudy
31 May
( Thu ) 		51 71 Partly Sunny
Partly Sunny
>> Click here for temperatures in oC
 
Climatological Information
Month Mean Temperature oF Mean Total Rainfall (mm) Mean Number of Rain Days
Daily
Minimum		 Daily
Maximum
Jan 35.8 47.0 124.0 18.0
Feb 36.3 51.3 93.0 14.9
Mar 39.6 56.7 93.5 17.6
Apr 43.1 61.4 69.3 16.4
May 48.6 68.0 62.7 13.6
Jun 53.6 73.5 43.2 9.2
Jul 57.8 80.6 16.5 4.1
Aug 58.0 81.1 17.0 3.9
Sep 53.1 75.8 37.3 6.7
Oct 46.0 63.8 76.2 12.5
Nov 40.5 52.8 143.0 19.0
Dec 35.2 45.6 139.4 18.6
>> Click here for temperatures in oC

Remarks:
* Climatological information is based on monthly averages for the 30-year period 1981-2010.
* Attention: Please note that the averaging period for climatological information and the definition of "Mean Number of Precipitation/Rain Days" quoted in this web site may be different for different countries. Hence, care should be taken when city climatologies are compared.