Happy to help, dwbrown77! Open Forecast view, then tap the View button in the toolbar - it looks like an eye. If the "Calendar Events" item in the next screen is unchecked, tap it to re-enable calendar events.
If the item on that screen is checked checked but there are no items appearing in Forecast view, something may have changed in the "Mail, Contacts, Calendars" section of the Settings application on the phone which is preventing OmniFocus from seeing your events. If that appears to be the case, the best thing to do is probably to
email or call (800.315.6664) our support ninjas so we can investigate. Sorry for the trouble this is causing!