I have a Airguide Barometer with humidity and temperature indicators as well. The Barometer looks like 60's era equipment. It is an indoor unit wood frame, glass front w/dial indicators and I keep it in the living room. The Barometer reading was 26.5 but online the weather statistics indicated the Barometer at 29.9 and falling! In the back there is a adjustment screw within a small hole. This screw adjusts the Barometer reading. My question is this! Should I adjust the Barometer according to the weather statistics that I find online or leave it as is?? Thanks for your help!!

26.5 might be a reasonable reading when Dennis hit. If the web site reading is from within 50 miles, it may be as accurate as any other resource. I would adjust it.

I was thinking that if it wasn't all that far off then I would adjust it! I thought it was a good yard sale find and might off it on EBay! It's a really nice looking unit! Thanks Again!