Yeast gone bad?

[BlueberryHill]

A month ago we did a brew day and had 2 batches planned. Never got to the 2nd batch. I inadvertently stashed my Safale US05 in my ferm chamber at that time. So the yeast packet has been in there at exactly 65 degrees for a month now. Is the yeast still good, or do I need to make a trip to the LHBS and get some more before we brew on Saturday?

 

[dstockwell]

You can check the viability using the manufacture date and using a yeast calculator on mrmalty

storage
During transport : The product can be transported and stored at room
temperature for periods of time not exceeding 3 months without affecting
its performance.
At final destination: Store in cool (< 10°C/50°F), dry conditions