Oswego Community Unit School District 308 Snow Day Predictor

Oswego announces closings families notified no later than 5 a.m, by its own published protocol.

By phone call, email, text message, the district app, the district website and social media, and on the district’s own closings page.

5 for the 2026 to 2027 school year, listed on the calendar as “emergency days”.

It can. Oswego has remote learning days in its winter plan. When a closing gets likely, the morning here reads "Snow day or remote day".

May 28, 2027, on the district’s 2026 to 2027 calendar.

It reads the National Weather Service forecast for Oswego through the night and the 5 to 8 am bus run, adds winter alerts and the Winter Storm Severity Index, and measures the snow against Oswego’s own big snow morning: 2.7 inches, the top tenth of snowy weekday mornings at a NOAA weather station 6.2 miles away.

Illinois requires a calendar of at least 185 days to guarantee 176 days of actual student attendance, each of at least 5 clock hours. The extra calendar days are emergency days used first; after they are gone, the State Superintendent may excuse days lost to an act of God or a hazard beyond the district's control without cutting state aid.