Re: [weewx-user] Forecast V3.4.ob2 Problems

[John Kline]

Hi Phil,

I just pushed an v4.0 update to weewx-forecast that adds support for UK Met Office Datahub forecasts.

You’ll need to sign up for a Global Spot API key.  It’s in the Site Specific section.  The free plan should work for you as 360 is plenty of calls.

Global Spot        Free plan should- 360 calls/day

The location parameter in the UKMO section is no longer used.  Rather, a forecast is returned for the latitude and longitude of the station.  If you want a forecast of something other than that, you can specify latitude and longitude in the UKMO section.

The new forecasts support more data than the old, so more items will show up in the sample forecast reports.

John

On Aug 5, 2025, at 5:56 AM, philip....@gmail.com <philip....@gmail.com> wrote:

Sorry to ask and its probably a question for either Mathew H or John K but could UKMO datahub be added to the forecast software

Thanks Phil

On Monday, August 4, 2025 at 2:17:31 PM UTC+1 steepleian wrote:

Met Office have or in the process of changing data hubs so that may be the reason.

https://claydonsweather.org.uk

On 4 Aug 2025, at 13:21, philip....@gmail.com <philip....@gmail.com> wrote:



weewx V 5.1.0

Been having problems getting downloads from UKMO for a while now but only started to look into it.

It downloads 4/5 cycles Ok and then fails

025-08-04T12:50:17.090123+01:00 raspberrypi weewxd[1790]: ERROR user.forecast: UKMOThread: UKMO: missing field 'Location'
2025-08-04T12:50:17.090187+01:00 raspberrypi weewxd[1790]: INFO user.forecast: UKMOThread: UKMO: got 0 forecast records

If I then, shortly after the failure, delete forecast.sdb and reboot it downloads OK.

2025-08-04T13:02:14.535656+01:00 raspberrypi weewxd[2113]: INFO user.forecast: MainThread: UKMO: forecast version 3.4.0b2
2025-08-04T13:02:14.537368+01:00 raspberrypi weewxd[2113]: INFO user.forecast: MainThread: UKMO: interval=10800 max_age=604800 api_key=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXf051 location=354731

2025-08-04T13:05:17.618878+01:00 raspberrypi weewxd[1787]: INFO user.forecast: UKMOThread: UKMO: got 38 forecast records

It looks like a UKMO problem but why does it download OK if I delete the database shortly afterwards.

Thanks Phil

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[John Smith]

How good is their global forecast model?

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[philip....@gmail.com]

Thanks John

Are all api_keys this length or is it just UKMO ?

[John Kline]

Of course, not all API keys are this long.  I take it you have an issue with the length?

On Oct 15, 2025, at 8:07 AM, philip....@gmail.com <philip....@gmail.com> wrote:

Thanks John

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