Bright round object seen at night, shot upward at a 45% angle, then got dimmer and dimmer until it faded away.

My husband and I were travelling north at about 8 p.m. in our car at night and were starting to descend into Bend, OR.  I saw a round, bright light in the sky.  All of a sudden, the object shot upward, but not in a straight line. It shot at a 45% angle to the right.  My husband was asleep, but I woke him up.  He saw it too.  The object started to get dimmer and dimmer, then a cloud came over it and we could no longer see it.  We don't know if it faded out completely, or if the cloud was just not allowing us to see it anymore.  It really shook me up.  My husband, also commented that what we saw was very strange, not like what an airplane would look like in the sky at night.  I remember stopping to get a cup of coffee, in Bend, before continuing on our journey to the Oregon Crater, located to the east of Bend.
Witness indicates that date of incident is approximate.  PD