Weather not updating when using sim rate in historical live-weather

Bug Reporting Hub Weather & Live Weather
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ISSUE DESCRIPTION

Description of the issue: When I use sim rate, the clock accelerates correctly, so the time is correct. However the 24h-weather does not update accordingly with the in-sim clock. This is noticeable in the metars in the EFB - they will not be from the time the in-sim clock shows. When clicking the weather tab, it will move the time back.

What it SHOULD do:
Weather will advance in the same sim rate. So after 30 minutes of 4x sim rate, weather (and metars) should also be 2 hours later.

FREQUENCY OF ISSUE

How often does this occur for you (Example: Just once, every time on sim load, intermittently)? Always

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

  1. Set the clock to 0600 UTC (needs to be in the past, so not live and not future weather). Fly for 30 minutes in sim rate 4x. In-sim clock will now show 0800 UTC (4x 30 minutes later).

  2. Open the EFB and select the weather tab on any airport. The EFB metar will now show metars from around 0630 UTC (so the 1x time that has passed) and not from 0800 UTC.

  3. When you now click the weather toolbar tab, the in-sim time will instantly move back to 0630 UTC.

YOUR SETTINGS

If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the User Support Hub.

What peripherals are you using: Joystick and Throttle and Rudder

[PC Only] Are you using Developer Mode or have you made any changes to it? No

[PC, MSFS 2020 Only] Are you using DX11 or DX12?

[PC Only] What GPU (Graphics Card) do you use? 4070

[PC Only] What other relevant PC specs can you share?

MEDIA

Please add a screenshot or video of the issue occurring.

2

Title updated replacing “non-live weather” by “historical live-weatther” to avoid confusion with custom weather (presets).

3

I have exactly the same issue. Is this logged as a bug?

4

Bump - could we get acknowledgement that this has been logged as a bug?

It’s incredibly easy to replicate - just use sim rate for a bit when flying with historic weather. Upon arrival, the METAR timestamp on the EFB will be hours behind the time indicated in the sim, as the weather/METAR time always progresses at 1x, even when using sim rate 8x.

5

No mention of this being fixed in the SU5 release notes.

Can we please at least get some kind of recognition that this is a logged bug? It’s incredibly easy to replicate and happens every single time when using sim rate with historical live-weather.

In case it’s not clear what the issue is - here’s a scenario:

Real time of flight: 13-Feb 2026, 21:00z to 22:00z using sim rate 8x on any aircraft

Departure time in sim: 13-Feb, 10:00z from EGLL

Arrival time in sim: 13-Feb, 18:00z at KMIA

Flight time was 8 hours in sim time, 1 hour in real time using 8x

Sim time correctly shows 18:00z when landing.

Metar shows 11:00z as it never synced to 8x and continued to move at 1x. Doesn’t matter how long one flies from that point onwards at 1x either, the Metar will now always remain 7 hours behind the sim time. This happens every single time when using sim rate. Either fix it so the Metar syncs to sim rate or do regular checks when using historic live-weather to sync it back to sim time. The way it’s now is really frustrating and broken - it defeats the whole purpose of this feature when flying at more than 1x.

I hope that makes sense. Would be wonderful to get this fixed.

7

Can replicate following OP steps.

8

Is there any update on this? Can be reproduced but status still says “feedback logged”. Thanks!

9

Still reproducible in SU5.

Screenshot 2026-05-05 234606
Screenshot 2026-05-05 2346061638×1163 139 KB
10

The ATIS incorrect time when using sim rate or historical weather is a different issue: ATIS Not Using Current Simulator Time

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I think it’s fixed (mostly) on SU5. Whenever I do sim rate for longer and then open the weather/time toolbar window, it shows the current (sim-rate adjusted) time. So that seems to be correct now. Sometimes it seems like it does refresh the weather when I do that, but that’s probably because they’ve got fixed intervals for refreshing the weather and you simply toggle a manual refresh by opening the toolbar window.
I still have to see whether it updates without me opening the weather toolbar window. So e.g. I need to look at the internal EFB and look for the last METAR data (is it adjusted by sim rate or is it still from hours ago?).

12

Thanks, that’s great news if true. I didn’t see it mentioned in the SU5 release notes. Can’t test myself at the moment as I’m waiting for a new computer…

13

Tested again and yes, it seems to be fixed.
And opening the weather panel does not bring back you to the time to when you originally setup your historical weather/time.

14

Finally got my new PC - I can confirm that it is semi-fixed.

I still have to open the weather panel in the sim to trigger the sync to current time. Without opening the weather panel it remains at sim rate 1x, even when flying at 4x or higher.

So it’s definitely a step in the right direction but if it could get fed back to find a fix that syncs the weather when using sim rate without having to open the weather panel to prompt the sync to current time that would be perfect! Thanks, and in the meantime I’m happy that I can at least manually trigger the resync when using sim rate.