The Northern Indiana National Weather Service weather forecast office posted the graphic above this evening, which shows the latest two-day rainfall forecast from the Weather Prediction Center. Most of Allen County can expect two to three inches of rainfall. Northern Ohio could get three inches or more.The Northern Indiana National Weather Service weather forecast office posted the graphic above this evening, which shows the latest two-day rainfall forecast from the Weather Prediction Center. Most of Allen County can expect two to three inches of rainfall. Northern Ohio could get three inches or more.