[TassyJim]

Thanks guys,

I will order a new one and report back. Are the 4 pin senors the best option? Some higher quality companies like Adafruit sell the sensor but they seem to be mostly 6 pins.

-Adam

The Adafriut 6 pin ones can do SPI as well as I2C.  They also would allow you to change the I2C address.
The only benefit would be if you wanted to run 2 simultaneously.

Jim

[AllyCat]

Hi,

Are the 4 pin sensors the best option?

IMHO, yes.  They will probably include the (necessary) 5 volt regulator which the (cheap) 6-pin devices may not.  Note the basic BME280 sensor  is only 3.3 volt tolerant!

Here is another recent thread where much of this was discussed.  For a "Chinese" BME280 (breakout board) you should expect to pay at least US$ 4 and for  a "branded" version at least $15.

Cheers,  Alan.

[werk_ag]

IMHO, yes.  They will probably include the (necessary) 5 volt regulator which the (cheap) 6-pin devices may not.  Note the basic BME280 sensor  is only 3.3 volt tolerant!

Hi Alan,

Please note that on Pro2 PLUS the BME280 is powered by 3.3V and the PCB already includes two MOSFET transistors to act as logic level converters on the SDA / SCL lines, so its perfectly safe using those 6 pins BME280 modules.

Regards
Werk_AG

[richaam]

Good news, I received my new sensor yesterday and everything is working! Thank you to everyone for your help.

[werk_ag]

Thanks for the good news.  
Hope soon I can see your weather station listed on the Online Weather Stations map.