kohls.com has this La Crosse Technology Wireless Color Weather Station for $18.36 with free store pickup.

• Indoor/Outdoor Temperature (ºF/ºC) with Indoor Humidity (%RH) and MIN/MAX recorded values from up to 197 ft (60m) range
• 12/24 view with manual time set and full calendar (abbreviation weekday) date
• Time alarm and backlight (ON setting for continuous light / OFF setting for power-saving mode (8 second delay)
• Can receive up to 3 transmitting sensors (includes 1 sensor)