Yup fairly warm days and rather cool nights are sure signs that the seasons are changing. SOOOOO it's time to maybe do a little maintenance on your cast iron and steel surfaces. Prevention is better than curing but stuff happens. Go to
http://www.newwoodworker.com/clncstirn.htmlOne tip that I've found effective is to re cycle old used bedsheets. Use them as quick dust covers for your major tools ie.. table saw, jointer etc. Old pillow cases work well for small bench top tools ie., drill press. bandsaw. The fabric not only keeps floating dust from settling but it breaths so the humidity doesn't do its evil work.