topic Re: Nest Thermostat Displays Incorrect Outside Temperature!! in Nest Thermostats

Nest Thermostat Displays Incorrect Outside Temperature!!

Cascadeconsult — Fri, 22 Oct 2021 17:30:54 GMT

The outside temperature indicated on our 3rd Generation Nest Thermostat is off by 8 - 10 degrees significantly impacting the efficiency of our system; Heat Pump and Aux Heat.

From what I can see, this issue has been raised for more than 2 years by many users and so far there is no fix and unfortunately it cannot be resolved by the user resetting the device, connecting to WIFI, verifying location, etc. as sometimes suggested.

The issue is upstream from the user and it is very easy to see if you simply compare the google results of "zip code + weather" vs "City, State + weather". The Nest still requires a zip code to be used for the Nest's location while the results for "City, State + weather" returns the accurate information. We live in a city of 35,000 people with one zip code and we're consistently off by 8 - 10 degrees.

How is it that this can go several years without being resolved? At this point it defeats the main purpose for having a Nest! Please let me know if anyone has hit on a solution or what we can do to make Google more aware of the problem. Thanks!

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

mbauop — Sat, 03 Dec 2022 16:42:59 GMT

Same here .

Does anyone know any outside temp sensor I could attach to the nest thermostat to have the correct outside temp ?

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Jake — Tue, 07 Dec 2021 20:09:35 GMT

Hey all,

Apologies for the late reply. I wanted to follow up and ensure you are good to go. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.

Best regards,
Jake

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Jake — Fri, 10 Dec 2021 19:09:06 GMT

Hey Cascadeconsult,

I want to ensure you are good to go, and everything is working properly. Please let me know if you are still having trouble, as I will be locking the thread in 24 hours due to inactivity.

Best regards,
Jake

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Cascadeconsult — Fri, 10 Dec 2021 20:14:47 GMT

Hi Jake,

Yes, I am still experiencing the same issue. For example, today if you enter our zip code into google.com it returns a temperature of 27 degrees and it returns 35 degrees if you enter our city, state. The city, state temperature is more accurate but our Nest unfortunately uses the zip code. I would love it if we could find a solution. Thanks!

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Iluvuk — Sun, 12 Dec 2021 22:56:03 GMT

I have the same problem. Is there a solution?

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Kirk4 — Fri, 07 Jan 2022 06:49:10 GMT

I’d like to ask Jake what the basis for his “good to go” message was. This is a long standing issue that to my knowledge has never been fixed. Right now my nest is 13 degrees off, which is about what it was five years ago when I first bought a nest.

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Cascadeconsult — Fri, 07 Jan 2022 15:00:09 GMT

I agree! And I'm not sure why Jake hasn't responded to the latest posts in any way?! We are of course in the middle of winter and this issue is really causing problems (costing money).

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Iluvuk — Fri, 07 Jan 2022 16:14:27 GMT

I improved the temp discrepancy dramatically by using an adjacent zip code to mine. Try changing to a nearby zip code. It helped mine be more accurate.

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Wagnerkw — Tue, 11 Jan 2022 15:17:24 GMT

I’m guessing no solutions to this.

my nest says it’s 25 degrees outside. It’s actually 45 degrees. The low today was 38. It’s not even close. My address is correct, but seems the temperature is from another state.

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Iluvuk — Tue, 11 Jan 2022 16:31:08 GMT

Try changing to the zip code next to yours. Worked for me

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

AustinEddie — Wed, 12 Jan 2022 02:14:07 GMT

My Ecobee always had the right outdoor temp, but oddly this shiny new Nest learning thermostat needs to learn how to get the right outdoor temp?

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Johnsnest — Sun, 16 Jan 2022 14:50:58 GMT

My Nest is in a zip code that covers a huge area and some 3000 feet of elevation change. I'm on the western edge. My outside temp can be off by 30 degrees. By picking the zip code that is just west of me, the temp is much closer. Not perfect, but a lot closer.

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Cascadeconsult — Thu, 20 Jan 2022 16:51:59 GMT

Where did you go to change the zip code? Thanks!

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Iluvuk — Thu, 20 Jan 2022 17:35:48 GMT

In the Nest app click settings, then home info, then address

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Larry_in_NE_GA — Tue, 22 Feb 2022 22:13:50 GMT

Johnsnest:

I have the exact same situation, except the elevation variance is more like 2000' here in NE Georgia. But the temperature at my house is an average of at least 5 degrees cooler than in town for my zip code. I haven't yet tried the neighboring zip code trick, but I don't have high hopes of those being any more accurate.

To make matters worse, I just spent $200+ to replace my old, faulty Outdoor Air Temperature (OAT) sensor attached to my Carrier heat pump/propane back-up dual fuel system (including an old, programmable Carrier thermostat). Now I feel stupid because I realized today that there seems to be no way to attach the OAT & S-Return wires to my new Nest Learning Thermostat. It makes my Nest Thermometer experiment *very* expensive because I can return neither it nor the new OAT sensor at this point. Ouch!

So, does anyone know...

1. If there's a way to attach the OAT/SRTN wires to the Nest Learning Thermostat?

2. If the Nest Temperature Sensor can be used outside in order to trigger my dual-fuel system to switch fuels at the correct temperature? I have a place that is both protected from both sun & rain and should be within Bluetooth range (despite walls) of my thermostat.

3. Is there any way for the Nest thermostat to pull the outdoor temperature from my neighbor's online Weather Underground Personal Weather Station rather than the Weather Channel's less precise location-based outdoor temperature?

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

KLocq — Sat, 26 Feb 2022 19:53:26 GMT

Jake hasn't responded because he's not really a Nest specialist. I'm guessing he's been hired by Google to do social media PR. Check out his profile and his latest posts. It's always the same template answer "wanted to check in to see if you're good to go" and never offered any solution.

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

KLocq — Sat, 26 Feb 2022 20:00:37 GMT

Using an adjacent ZIP code only works when the wind blows in the correct direction. Think about it.

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Dbtoo — Mon, 21 Mar 2022 12:57:38 GMT

MIne used to be close to correct, but no it always reads about 13º too low - which of course affects heat pump usage and adds to propane costs. Google seems completely indifferent to this issue. I wonder if Ecobee is any better? I did a little research just now and found that if I look at the Wunderground local weather station map there are stations in my county that are showing the same temp as my Nest. I have multiple temp sensors on different thermostats and/or sensors around our 20 acre property and can guarantee that it is almost 13 degrees warmer here. And, fact there are other stations in my county that are reading within a degree of mine - including the nearest one to my location. It would be great if we could tie to our own outdoor weather stations/thermostats.

Re: Nest Thermostat Displays Incorrect Outside Temperature!!

Parl — Wed, 22 Jun 2022 19:47:32 GMT

Put another zip in for a few seconds then change it back the temp will reset itself