First time I've ever had this happen. A newly transitioned child (transitioned the night before), first day of school and he gets the 'Snow day' message. There's 2 days left of Autumn and it hasn't even snowed yet. (And yes, I'm still playing the Sims2, removed Sims3 months ago.)
Day 73 of the Neighborhood, so I've gone through 2+ normal (as in all 4 Seasons) cycles. The batbox says the outside temp is -31 ((r11/r17/LUA 0/0/0) whatever that means).
Both parents are heading to work so I'll have to wake up poor grandma and hopefully have her run the kid to school, unless there's a way I can force the game to cancel the Snow day and have the bus come. Only up to Seasons EP here so no 'walking to school' option.
Edit: After more searching, I finally found a Post from Magicmoon about a Snow day her sims got in mid-summer. No reply on how/why it happened.
http://www.moreawesomethanyou.com/smf/index.php/topic,9397.msg257033.html#msg257033
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