Yes! I wasn't able to add this in the invitations. If you do not already have two people addressed on your invitation, you're more than welcome to bring a plus one!
Despite our love for kids, we decided not to have children at the wedding. Thank you for your understanding.
Montana is unpredictable. It will be in the 50s, up to maybe 70s if we are lucky during the day. At night it will cool down significantly. We recommend bringing layers in case it gets chilly.