Daily and hourly forecast details inconsistent

[s38b35M5]

When looking at Monday's forecast high temp (today being Saturday) for a given location, I see a high/low temp of 68F/82F.

If I scroll along the hourly forecast to Monday, the temp gets as low as 71F up to 88F.

Here is another example, with Portland Maine USA

Are these forecasts coming from different sources? Why don't they match? Which is to be trusted?

[farfromrefug]

@s38b35M5 Thanks for the detailed report. Seems to be an issue with Open-Meteo as i get those values directly from there. I will report it there

[s38b35M5]

Great app. It's so nice to have a weather app that doesn't sit for 10 seconds before loading while it scrapes my device and loads trackers.

[farfromrefug]

@s38b35M5 thanks a lot we share the same feeling ;)

[s38b35M5]

Contrary to this comment, I see this behavior on today as well, albeit in a slightly different way:

You can see in the screenshot that today's high/low in the top right do seem to match the hourly, but not the high/low for the same day in the long range forecast below, where you see 76/83 vs 71/83.

And another example of the original with tomorrow:

[0-5-0]

Can you see if it's fixed now in the latest version (115) @farfromrefug just released a new version to in part resolve an issue with timezones, it seems to have fixed this issue for me.

[farfromrefug]

@0-5-0 @s38b35M5 i think this issue is related to Open Meteo open-meteo/open-meteo#642. It would be worth checking if this is still an issue today as Open Meteo is constantly improving

[0-5-0]

The timezone bug aside (which should be fixed by now), there was also some changes to feels like temperature stuff in the latest release. If you're using "Show Feels like" in the settings you could see if it makes a difference with it on/off.

[s38b35M5]

Still isn't matching, though I see "today" is no longer present in the long range forecast. Going only by the high/low for today in the top right and the hourly temp estimates, there's still a noticeable difference.

[s38b35M5]

I meant to add that I don't use the feels like setting.

[farfromrefug]

@s38b35M5 Yes your error seems unrelated to feels like. Could you try something for me? in preferences/weatherdata. Could you enable "show current day in daily list"?
Then share a screenshot like you did with current top min max does not correspond. I want to see if it also not correspond on the daily list for the current day

[0-5-0]

I can reproduce the same issue on my device. I tried a few locations, Grenoble France, Toronto Ontario, Portland Maine.

Note that I have the "Use feels like" turned on and I'm using celcius instead of fahrenheit but the issue occurs with it on/off or with/without celcius/fahrenheit as well.

In the 2-3 days that I could see under hourly for Grenoble it hit the forecasted min/max temperature at some point throughout those days on each of the days, so no issues when testing with Grenoble.

In the 2-3 days for Toronto under hourly it hit the daily forecasted min/max temperature on 1 of 3 then 2 of 3 it doesn't quite reach it or goes above it when scrolling through the hourly section.

Monday shows it's forecasting a high of 0 but it hits a high of 2 when scrolling through the hourly view, Tuesday is fine, then Wednesday it forecasts a high of 1 but only hits 0, it does hit the low:

In the 2-3 days for Portland under hourly it doesn't quite reach the high or low on all 3 days or goes above it when scrolling through the hourly section.

Monday it forecasts a daily high of -1 but shows -3 under hourly, Tuesday it forecasts a high of -3 but hits -2, and Wednesday it forecasts a low of -3 but only hits -2:

Not sure if there's rounding somewhere affecting this, Portland and Toronto are in the same timezone/have the same time.

[farfromrefug]

@0-5-0 thanks a lot for the testing! it confirms what i think which is that the issue comes from Open-Meteo. he knows about it. Not sure if he has plan to fix it