Walmart offers the AcuRite Wireless Weather and Intelli-Time Clock Station for $8. Choose in-store pickup to avoid the $5.99 shipping charge. That's the lowest price we could find by $6, although we saw it for a buck less in May. It's pre-programmed with the time, day, and date (through 2050) and monitors indoor and outdoor temperatures. Five AA batteries are required, not included.