Product review (4 stars): Ambient Weather Station is fun to use and accuracy is useful but not 100 percent accurate but decent for my needs
Ambient Weather WS-11 Weather Station REVIEW:

My experiences with this Weather Station are pleasurable. It isn't always within 2 degrees as description in the specs.  It can get 4 degrees perhaps 5 degrees off the real temperature.  On the other hand, it is within or around the 2 degree specs on this model many times.  It does get right on the money on the temps at times.  If you are after a thermometer that is 100 percent accurate then this model is not for you.  However, if you are looking for a thermometer that is around the temperature and is usually around 2 degrees off the real temperature and can get 4-5 degrees off the real temperature at times then this thermometer station would be a good choice.

The features with this model are fabulous and a real fun design.  I am looking for the features of this model like dew point, max-min temperatures, barometer with weather forecast, and other features as well are a joy to have with this particular model.

My grading would be A+ for the feature design and B for the accuracy of this model considering the cost and all the features with this model.  If you don't want to pay this amount but want similar results at a lower price consider:  Therm Pro Wireless Indoor/Outdoor Humidity and Temperature Monitor model no.: TP-65.

I do have the Therm Pro TP-65 and the Ambient Weather WS-11 Weather Stations and after testing both of them it seems at this time that both are very similar with accuracy.  One is usually high as the other one is lower than each other.  Keep in mind also, they are both around 2 degrees off the mark but can be at the real temperature.  Throughout the day and night both are good thermometers and I would recommend both of them.  On the other hand, I would select the Ambient Weather Station over the Therm Pro because of the extra features.

In conclusion, I didn't use online temperature to compare the real temperature results.  I had at hand but not always able to use the red liquid thermometer and the Thermapen by ThermoWorks: model Mk4.  Although the Thermapen isn't a thermometer for air temperature it is always the same on my tests from the red liquid thermometer or about 1 degree from it.  I do trust my Thermapen Thermometer because it always pass the cold ice test at 32 degrees and boiling water test at or very close to the 212 degrees (depends on your location for the 212 degrees for 212 degrees is for sea level).  You can go back forth from cold to boiling water and the thermopen passes the tests.

For cooking food the ThermWorks Thermopen Mk4 would be my recommendation for a good accurate food temperature.  Is it good for air temperature?  It wasn't designed for air temperature however my tests show it is very close to my red liquid thermometer in my tests.

At times the Weather Station measured by the red liquid thermometer is accurate many times and can be trusted for around this temperature thermometer.  I look at it and know it can be off the mark so I consider it is mostly around 2 degrees off the mark can be on the mark and finally can be 3 degrees  and not often over  4 degrees  5 degrees off the mark.

Finally, I am happy with this Weather Station and I would recommend it for approximate temperature around 1-2 degrees maybe 3 degrees off the mark; at times can be 4 to 5 degrees off the real temperature.

If you don't get similar results, it depends on the method you are using for testing the thermometer for comparison.  My method for testing my thermometers isn't scientific and the final decision is yours but it does give references where it is close enough for me to consider for keeping a thermometer or returning it.  I decided to keep both of my thermometers unless the results of the tests change dramatically in the next few weeks.  I am almost finished with my tests and so far I would keep both thermometers.

UPDATE:

After further study the Ambient Weather W-11 Weather Station is a good buy  continue to be recommended to be accurate around 1-2 degrees and at times can be 3 degrees and perhaps 4-5 degrees off the mark here and there.  The main reason to keep it is dependable to give a temperature that is useable information to decide what to do with the information  like approximate temperature  to decide what clothing to wear  is it humid or what the dew points is.  I use it to give information for jogging and the information doesnt have to be extremely accurate but I would like with decent accuracy.

I have read other reviews here and perhaps the best solution is to try it for yourself and decide on how much accuracy does you want.  Dont get it if you want 100 percent accuracy because you will not get it most of the time.  I get decent accuracy for my needs.  Keep in mind, for the value it is unlikely you will get an extremely accurate device but it does serve a purpose of approximate temperatures with many useable features.

Therm Pro TP-65 costs around $25.99 (doesnt have all the extras)
Ambient Weather WS-11 Weather Station:  costs around $34.99
Thermapen Mk4 costs around $99.99 (at times on sale for $79.99)