Question
I'm in Indiana.  We just had 10 days of 70+ weather.  Now it's 30 and my yard needs to be cut.  Is it too cold to cut now?

Answer
Rob, if the grass needs to be cut, go cut it.  If there's frost, wait.

Remember, grass must be DRY to be mowed.  Moist grass, frosted blades, those are wet and must not be touched with that lawnmower until they have turned bone dry.

Cold is OK.

But wait if needed for frost to melt.  Watch out for Easter Bunnies.

Any questions, I'm here.