I feel you misery. Both of you!
Our nights have been getting into low-to-mid 50's (I drive to work at 5:30am) and our highs have been upper 90's (I drive home at 5pm)
So.... I wear my good ol' BDU coat in the morning to cut the wind (BDU coat and cargo shorts - I get some funny looks at stoplights!) and I sweat my keester off on the way home.
Grinning the whole time