As I wrote in the original post I did re-install the forecast module using 
wee_extension. But I use it as part of Seasons skin within the left area 
below "Current conditions". To get that I had to copy forecast_compact.css, 
forecast_compact.inc, and the icons into Seasons skin. I only skipped the 
update of these skin files for my new weewx 4 environment. Now I've 
compared forecast_compact.* from weewx 3.x with their new successors from 
weeewx 4 - css is unchanged while there are many changes within inc. Thus I 
now use that updated forecast_compact.inc. Now the compact forecast 
contains only 4 instead of 5 columns, but with unchanged data (column 
Tuesday is missing).

I've re-engaged the forecast skin to get "raw" forecast without Seasons 
skin. It, too, contains the wrong data with 4 columns (instead of 5) and 
with "wrong" data.

But to me it's still unclear if I'm using the "correct" recent forecast 
module weewx-forecast-3.4.0b10.zip
 (https://github.com/chaunceygardiner/weewx-forecast/releases/tag/v3.4.0b10). 
Is this the correct one?


[email protected] schrieb am Freitag, 20. November 2020 um 16:12:08 UTC+1:

> > but as is from weewx 3.x - no update of skin skin files)
>
> You are going to need to install this extension, not just copy over the 
> python file, so we can compare apples to apples here.  I know I had to make 
> more changes than just the python file to get this working.  Please do a 
> proper install and report back.
>
> On Nov 20, 2020, at 7:00 AM, 'Michael Waldor' via weewx-user <
> [email protected]> wrote:
>
> 
>
> Disclaimer: This is my first usage of google groups - hope the answer 
> reaches this thread.
>
> Ok, from json I get (using my api_key):
> "temperatureMax":[null,7,9,8,9,11],"temperatureMin":[-3,-1,4,2,1,4]
> which sounds reasonable for my location (see my original post).
>
> Within forecast seasons I see the appended kind of table (I use 
> forecast_compact.css 
> within seasons, but as is from weewx 3.x - no update of skin skin files) 
> - part from /var/www/html/weewx/index.html with the forecast table. To 
> compare the HTML more easily I've extracted the relevant part from my 
> rendered weather page :
>
> Fr FW -2 -2 6,4 10
> Sa SC  7 -1 7,2 10
> So OV  9 -1 6,4 10
> Mo OV  8 -1 6,4 20
> Di SC  9 -1 8,0 10
>
> As you see the (rendered) temperatureMin is -2,-1,-1,-1,-1
>
>
> [email protected] schrieb am Freitag, 20. November 2020 um 14:20:43 
> UTC+1:
>
>> Would you please get specific about what you think is wrong?  Include the 
>> WU output when you use the URL directly.
>>
>> Let’s concentrate on temperature, since you’ve called that out.  You’ll 
>> see something like this in the output:
>>
>> "temperatureMax":[7,7,9,8,9,11],"temperatureMin":[-3,-1,4,2,1,4],
>>
>> Please include that line and the numbers you are seeing in the forecast. 
>>  The code is grabbing the high for the daytime 12-hour period and the low 
>> form the nighttime 12-hour period.  That probably needs to change as, for 
>> example, the low for the day could be lower than the low for the nighttime 
>> period.  Let’s see your specific numbers to determine if that is the issue.
>>
>> On Nov 20, 2020, at 1:16 AM, 'Michael Waldor' via weewx-user <
>> [email protected]> wrote:
>>
>> 
>>
>> Just some days ago I've upgraded my raspberry pi 3 installation of weewx 
>> from 3.x to 4.x (forced to because my SD card seemed to be corrupted).
>>
>> Since I had to reinstall everything I decided to go with the most recent 
>> versions - i.e. upgrade raspian from stretch to buster, upgrade weewx from 
>> 3.x to 4.x, switch from python 2 to python 3.
>>
>> Getting weewx 4.x was not straightforward to me (I read my own 
>> documentation when I did my first install more then 2 years back and the 
>> current upgrade instructions) - by my fault I installed the python 2 weewx 
>> by apt-get, but finally I discovered the current apt-get repository, and 
>> now weewx-4.2.0 using python 3 is up and running.
>>
>> I had an additional problem. My weather station is the Renkforce WH2300 
>> using the wh23xx extension. As far as I understand this extension is as of 
>> now not fully ported to python 3. But I discovered a fork an github 
>> https://github.com/EdwinGH/weewx-wh23xx
>> That's running smooth but (being beta) floods the logs - thus I've 
>> changed its function logmsg to to nothing (python command pass).
>>
>> And now finally to my remaining problem: I also use the forcast extension 
>> with wunderground. Here, too, I'm using a temporary version from 
>> https://github.com/chaunceygardiner/weewx-forecast to get early python 3 
>> support. It seems to work - I get forcast messages. But the data shown seem 
>> to be partly off. If I do a direct WU query using json like
>>
>>
>> https://api.weather.com/v3/wx/forecast/daily/5day?geocode=48.959678,9.25629&format=json&units=m&language=en-US&apiKey=XXXXXXXXXXXXXXXXXXXXXXx
>>
>> I get different max/min temperatures compared with the data shown within 
>> the seasons skin. Especially the forcast for the current day looks always 
>> bad. Did I make a mistake within weewx.conf - it contains only the WU 
>> api_key (no separate location)?
>>
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> <5day.html>
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