The Blue Jays won’t be seeing any blue skies at the Rogers Centre until warmer weather hits Toronto, officials warn.

That means the roof of the dome will stay firmly shut during Monday’s home opener against the Tampa Bay Rays, starting at 7:07 p.m., despite a sunny and summer-like weather forecast for the day.

According to officials, Toronto needs to hang on to “sustained periods of plus 10 degrees” for crews to complete necessary mechanical and system testing after the winter season.

Although Monday will likely see a mix of sun and cloud throughout the day as Toronto climbs its way to a glorious 20 C, there is a also a risk of thunderstorms in the early evening.

Last year, the roof opened for the first time on May 24.

Officials reported the Jays played 45 home games with the roof open, 34 with the roof closed and two during which the roof’s status changed last season.