For the first half of March, Mars and Venus appear in the western sky after sunset. Catch them early, because late in the month, Venus slips below the horizon before twilight ends.
During the final week of March, though, Mercury takes the place of Venus low above the western horizon. Try to glimpse the small planet before it disappears from view.
In the late evening, watch for Jupiter rising in the east. A telescope will reveal the gas planet’s dark cloud bands. A large telescope might reveal the Great Red Spot.